]> git.zerfleddert.de Git - usb-driver/blobdiff - usb-driver.c
do not undef DEBUG
[usb-driver] / usb-driver.c
index b92c9516a6e8f35c989f4a5b407690194bf94ac9..d7d4fa7291467f6b239934cf0df9b7c84d68fd60 100644 (file)
@@ -1,13 +1,28 @@
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+/* libusb connector for XILINX impact
+ *
+ * Copyright (c) 2007 Michael Gernoth <michael@gernoth.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
 
 #define _GNU_SOURCE 1
 
-#if defined(RTLD_NEXT)
-#define REAL_LIBC RTLD_NEXT
-#else
-#define REAL_LIBC ((void *) -1L)
-#endif
-
 #include <dlfcn.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <usb.h>
 #include <signal.h>
-#include "xilinx.h"
+#include <pthread.h>
+#include <errno.h>
+#include <inttypes.h>
+#include "usb-driver.h"
 
 static int (*ioctl_func) (int, int, void *) = NULL;
-static int windrvrfd = 0;
-FILE *modulesfp;
+static int windrvrfd = -1;
+FILE *modulesfp = NULL;
 static int modules_read = 0;
 static struct usb_bus *busses = NULL;
 static struct usb_device *usbdevice;
 static usb_dev_handle *usb_devhandle = NULL;
-static unsigned long card_type;
+static uint32_t card_type;
 static int ints_enabled = 0;
+static pthread_mutex_t int_wait = PTHREAD_MUTEX_INITIALIZER;
 
 #define NO_WINDRVR 1
-#undef DEBUG
+/* #define DEBUG 1 */
 
+#ifdef DEBUG
+#define DPRINTF(format, args...) fprintf(stderr, format, ##args)
 void hexdump(unsigned char *buf, int len) {
        int i;
 
@@ -43,7 +64,11 @@ void hexdump(unsigned char *buf, int len) {
                if ((i % 16) == 15)
                        fprintf(stderr,"\n");
        }
+       fprintf(stderr,"\n");
 }
+#else
+#define DPRINTF(format, args...)
+#endif
 
 int usb_deviceinfo(unsigned char *buf) {
        int i,j,k,l;
@@ -73,7 +98,7 @@ int usb_deviceinfo(unsigned char *buf) {
                udi->Pipe0.dwNumber = 0x00;
                udi->Pipe0.dwMaximumPacketSize = usbdevice->descriptor.bMaxPacketSize0;
                udi->Pipe0.type = 0;
-               udi->Pipe0.direction = 3;
+               udi->Pipe0.direction = WDU_DIR_IN_OUT;
                udi->Pipe0.dwInterval = 0;
 
                pConfigs = &(udi->pConfigs);
@@ -219,45 +244,39 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                case VERSION:
                        version = (struct version_struct*)(wdheader->data);
                        strcpy(version->version, "WinDriver no more");
-                       version->versionul = 999;
-#ifdef DEBUG
-                       fprintf(stderr,"faking VERSION\n");
-#endif
+                       version->versionul = 802;
+                       DPRINTF("VERSION\n");
                        break;
 
                case LICENSE:
-#ifdef DEBUG
-                       fprintf(stderr,"faking LICENSE\n");
-#endif
+                       DPRINTF("LICENSE\n");
                        break;
 
                case CARD_REGISTER:
+                       /* TODO: Implement for LPT-support */
+#if 0
                        {
-                               //struct card_register* cr = (struct card_register*)(wdheader->data);
-                               /* Todo: LPT-Port already in use */
+                               struct card_register* cr = (struct card_register*)(wdheader->data);
                        }
-#ifdef DEBUG
-                       fprintf(stderr,"faking CARD_REGISTER\n");
 #endif
+                       DPRINTF("CARD_REGISTER\n");
                        break;
 
                case USB_TRANSFER:
-#ifdef DEBUG
-                       fprintf(stderr,"in USB_TRANSFER");
-#endif
+                       DPRINTF("in USB_TRANSFER");
                        {
                                struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);
 
 #ifdef DEBUG
-                               fprintf(stderr," unique: %lu, pipe: %lu, read: %lu, options: %lx, size: %lu, timeout: %lx\n", ut->dwUniqueID, ut->dwPipeNum, ut->fRead, ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
-                               fprintf(stderr,"setup packet: ");
+                               DPRINTF(" unique: %lu, pipe: %lu, read: %lu, options: %lx, size: %lu, timeout: %lx\n",
+                               ut->dwUniqueID, ut->dwPipeNum, ut->fRead,
+                               ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
+                               DPRINTF("setup packet: ");
                                hexdump(ut->SetupPacket, 8);
-                               fprintf(stderr,"\n");
 
                                if (!ut->fRead && ut->dwBufferSize)
                                {
                                        hexdump(ut->pBuffer, ut->dwBufferSize);
-                                       fprintf(stderr,"\n");
                                }
 #endif
 
@@ -272,9 +291,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                                        value = ut->SetupPacket[2] | (ut->SetupPacket[3] << 8);
                                        index = ut->SetupPacket[4] | (ut->SetupPacket[5] << 8);
                                        size = ut->SetupPacket[6] | (ut->SetupPacket[7] << 8);
-#ifdef DEBUG
-                                       fprintf(stderr, "requesttype: %x, request: %x, value: %u, index: %u, size: %u\n", requesttype, request, value, index, size);
-#endif
+                                       DPRINTF("requesttype: %x, request: %x, value: %u, index: %u, size: %u\n", requesttype, request, value, index, size);
                                        ret = usb_control_msg(usb_devhandle, requesttype, request, value, index, ut->pBuffer, size, ut->dwTimeout);
                                } else {
                                        if (ut->fRead) {
@@ -294,68 +311,67 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #endif
 
 #ifdef DEBUG
-                               fprintf(stderr,"Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
+                               DPRINTF("Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
                                if (ut->fRead && ut->dwBytesTransferred)
                                {
-                                       fprintf(stderr,"Read: ");
+                                       DPRINTF("Read: ");
                                        hexdump(ut->pBuffer, ut->dwBytesTransferred);
-                                       fprintf(stderr,"\n");
                                }
 #endif
                        }
                        break;
 
                case INT_ENABLE:
-#ifdef DEBUG
-                       fprintf(stderr,"INT_ENABLE\n");
-#endif
+                       DPRINTF("INT_ENABLE\n");
                        {
                                struct interrupt *it = (struct interrupt*)(wdheader->data);
 
-#ifdef DEBUG
-                               fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
-#endif
+                               DPRINTF("Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               it->hInterrupt, it->dwOptions,
+                               it->dwCmds, it->fEnableOk, it->dwCounter,
+                               it->dwLost, it->fStopped);
 
                                it->fEnableOk = 1;
+                               it->fStopped = 0;
                                ints_enabled = 1;
-                               //ret = (*ioctl_func) (fd, request, wdioctl);
+                               pthread_mutex_trylock(&int_wait);
                        }
 
                        break;
                        
                case INT_DISABLE:
-#ifdef DEBUG
-                       fprintf(stderr,"INT_DISABLE\n");
-#endif
+                       DPRINTF("INT_DISABLE\n");
                        {
                                struct interrupt *it = (struct interrupt*)(wdheader->data);
 
-#ifdef DEBUG
-                               fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
-#endif
+                               DPRINTF("Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               it->hInterrupt, it->dwOptions,
+                               it->dwCmds, it->fEnableOk, it->dwCounter,
+                               it->dwLost, it->fStopped);
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
 #else
                                it->dwCounter = 0;
                                it->fStopped = 1;
                                ints_enabled = 0;
+                               if (pthread_mutex_trylock(&int_wait) == EBUSY)
+                                       pthread_mutex_unlock(&int_wait);
 #endif
-#ifdef DEBUG
-                               fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
-#endif
+                               DPRINTF("Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               it->hInterrupt, it->dwOptions,
+                               it->dwCmds, it->fEnableOk, it->dwCounter,
+                               it->dwLost, it->fStopped);
                        }
                        break;
 
                case USB_SET_INTERFACE:
-#ifdef DEBUG
-                       fprintf(stderr,"USB_SET_INTERFACE\n");
-#endif
+                       DPRINTF("USB_SET_INTERFACE\n");
                        {
                                struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);
 
-#ifdef DEBUG
-                               fprintf(stderr,"unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", usi->dwUniqueID, usi->dwInterfaceNum, usi->dwAlternateSetting, usi->dwOptions);
-#endif
+                               DPRINTF("unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
+                               usi->dwUniqueID, usi->dwInterfaceNum,
+                               usi->dwAlternateSetting, usi->dwOptions);
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
 #else
@@ -366,7 +382,6 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                                        /* FIXME: Select right interface! */
                                        ret = usb_claim_interface(usb_devhandle, usbdevice->config[0].interface[usi->dwInterfaceNum].altsetting[usi->dwAlternateSetting].bInterfaceNumber);
                                        if (!ret) {
-                                               //ret = usb_set_configuration(usb_devhandle, usbdevice->config[0].bConfigurationValue);
                                                if(!ret) {
                                                        ret = usb_set_altinterface(usb_devhandle, usi->dwAlternateSetting);
                                                        if (ret)
@@ -375,29 +390,29 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                                                        fprintf(stderr, "usb_set_configuration: %d (%s)\n", ret, usb_strerror());
                                                }
                                        } else {
-                                               fprintf(stderr, "usb_claim_interface: %d -> %d (%s)\n", usbdevice->config[0].interface[usi->dwInterfaceNum].altsetting[usi->dwAlternateSetting].bInterfaceNumber, ret, usb_strerror());
+                                               fprintf(stderr, "usb_claim_interface: %d -> %d (%s)\n",
+                                               usbdevice->config[0].interface[usi->dwInterfaceNum].altsetting[usi->dwAlternateSetting].bInterfaceNumber,
+                                               ret, usb_strerror());
                                        }
                                }
 #endif
-#ifdef DEBUG
-                               fprintf(stderr,"unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", usi->dwUniqueID, usi->dwInterfaceNum, usi->dwAlternateSetting, usi->dwOptions);
-#endif
+                               DPRINTF("unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
+                               usi->dwUniqueID, usi->dwInterfaceNum,
+                               usi->dwAlternateSetting, usi->dwOptions);
                        }
                        break;
 
                case USB_GET_DEVICE_DATA:
-#ifdef DEBUG
-                       fprintf(stderr,"faking USB_GET_DEVICE_DATA\n");
-#endif
+                       DPRINTF("USB_GET_DEVICE_DATA\n");
                        {
                                struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data);
                                int pSize;
 
-#ifdef DEBUG
-                               fprintf(stderr, "unique: %lu, bytes: %lu, options: %lx\n", ugdd->dwUniqueID, ugdd->dwBytes, ugdd->dwOptions);
-#endif
+                               DPRINTF("unique: %lu, bytes: %lu, options: %lx\n",
+                               ugdd->dwUniqueID, ugdd->dwBytes,
+                               ugdd->dwOptions);
+
                                pSize = ugdd->dwBytes;
-                               //ret = (*ioctl_func) (fd, request, wdioctl);
                                if (!ugdd->dwBytes) {
                                        if (usbdevice) {
                                                ugdd->dwBytes = usb_deviceinfo(NULL);
@@ -409,21 +424,31 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                        break;
 
                case EVENT_REGISTER:
-#ifdef DEBUG
-                       fprintf(stderr,"EVENT_REGISTER\n");
-#endif
+                       DPRINTF("EVENT_REGISTER\n");
                        {
                                struct event *e = (struct event*)(wdheader->data);
                                struct usb_bus *bus;
                                int i;
 
-#ifdef DEBUG
-                               fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
-#endif
+                               DPRINTF("handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n",
+                               e->handle, e->dwAction,
+                               e->dwStatus, e->dwEventId, e->dwCardType,
+                               e->hKernelPlugIn, e->dwOptions,
+                               e->u.Usb.deviceId.dwVendorId,
+                               e->u.Usb.deviceId.dwProductId,
+                               e->u.Usb.dwUniqueID, e->dwEventVer,
+                               e->dwNumMatchTables);
+
                                for (i = 0; i < e->dwNumMatchTables; i++) {
-#ifdef DEBUG
-                                       fprintf(stderr,"match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
-#endif
+
+                                       DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
+                                       e->matchTables[i].VendorId,
+                                       e->matchTables[i].ProductId,
+                                       e->matchTables[i].bDeviceClass,
+                                       e->matchTables[i].bDeviceSubClass,
+                                       e->matchTables[i].bInterfaceClass,
+                                       e->matchTables[i].bInterfaceSubClass,
+                                       e->matchTables[i].bInterfaceProtocol);
 
                                        for (bus = busses; bus; bus = bus->next) {
                                                struct usb_device *dev;
@@ -441,15 +466,16 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                                                                           int ai;
 
                                                                           for (ai = 0; ai < interface->num_altsetting; ai++) {
-#ifdef DEBUG
-                                                                                  fprintf(stderr, "intclass: %x, intsubclass: %x, intproto: %x\n", interface->altsetting[i].bInterfaceClass, interface->altsetting[i].bInterfaceSubClass, interface->altsetting[i].bInterfaceProtocol);
-#endif
+
+                                                                                  DPRINTF("intclass: %x, intsubclass: %x, intproto: %x\n",
+                                                                                  interface->altsetting[i].bInterfaceClass,
+                                                                                  interface->altsetting[i].bInterfaceSubClass,
+                                                                                  interface->altsetting[i].bInterfaceProtocol);
+
                                                                                   if ((interface->altsetting[ai].bInterfaceSubClass == e->matchTables[i].bInterfaceSubClass) &&
                                                                                                   (interface->altsetting[ai].bInterfaceProtocol == e->matchTables[i].bInterfaceProtocol)){
                                                                                           /* TODO: check interfaceClass! */
-#ifdef DEBUG
-                                                                                          fprintf(stderr,"!!!FOUND DEVICE WITH LIBUSB!!!\n");
-#endif
+                                                                                          DPRINTF("found device with libusb\n");
                                                                                           usbdevice = dev;
                                                                                           card_type = e->dwCardType;
                                                                                   }
@@ -467,39 +493,51 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #endif
 
 #ifdef DEBUG
-                               fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
+                               DPRINTF("handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n",
+                               e->handle, e->dwAction,
+                               e->dwStatus, e->dwEventId, e->dwCardType,
+                               e->hKernelPlugIn, e->dwOptions,
+                               e->u.Usb.deviceId.dwVendorId,
+                               e->u.Usb.deviceId.dwProductId,
+                               e->u.Usb.dwUniqueID, e->dwEventVer,
+                               e->dwNumMatchTables);
+
                                for (i = 0; i < e->dwNumMatchTables; i++)
-                                       fprintf(stderr,"match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
+                                       DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
+                                       e->matchTables[i].VendorId,
+                                       e->matchTables[i].ProductId,
+                                       e->matchTables[i].bDeviceClass,
+                                       e->matchTables[i].bDeviceSubClass,
+                                       e->matchTables[i].bInterfaceClass,
+                                       e->matchTables[i].bInterfaceSubClass,
+                                       e->matchTables[i].bInterfaceProtocol);
 #endif
                        }
                        break;
 
                case TRANSFER:
-                       fprintf(stderr,"TRANSFER\n");
+                       DPRINTF("TRANSFER\n");
 #ifndef NO_WINDRVR
                        ret = (*ioctl_func) (fd, request, wdioctl);
 #endif
                        break;
 
                case EVENT_UNREGISTER:
-#ifdef DEBUG
-                       fprintf(stderr,"EVENT_UNREGISTER\n");
-#endif
+                       DPRINTF("EVENT_UNREGISTER\n");
 #ifndef NO_WINDRVR
                        ret = (*ioctl_func) (fd, request, wdioctl);
 #endif
                        break;
 
                case INT_WAIT:
-#ifdef DEBUG
-                       fprintf(stderr,"INT_WAIT\n");
-#endif
+                       DPRINTF("INT_WAIT\n");
                        {
                                struct interrupt *it = (struct interrupt*)(wdheader->data);
 
-#ifdef DEBUG
-                               fprintf(stderr,"Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
-#endif
+                               DPRINTF("Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               it->hInterrupt, it->dwOptions,
+                               it->dwCmds, it->fEnableOk, it->dwCounter,
+                               it->dwLost, it->fStopped);
 
 #ifndef NO_WINDRVR
                                ret = (*ioctl_func) (fd, request, wdioctl);
@@ -508,38 +546,53 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
                                        if (it->dwCounter == 0) {
                                                it->dwCounter = 1;
                                        } else {
-                                               while(ints_enabled) {sleep(1);}
+                                               pthread_mutex_lock(&int_wait);
+                                               pthread_mutex_unlock(&int_wait);
                                        }
                                } else {
-                                       while(ints_enabled) {sleep(1);}
+                                       pthread_mutex_lock(&int_wait);
+                                       pthread_mutex_unlock(&int_wait);
                                }
 #endif
 
-#ifdef DEBUG
-                               fprintf(stderr,"INT_WAIT_RETURN: Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", it->hInterrupt, it->dwOptions, it->dwCmds, it->fEnableOk, it->dwCounter, it->dwLost, it->fStopped);
-#endif
+                               DPRINTF("INT_WAIT_RETURN: Handle: %lu, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
+                               it->hInterrupt, it->dwOptions, it->dwCmds,
+                               it->fEnableOk, it->dwCounter, it->dwLost,
+                               it->fStopped);
                        }
                        break;
 
                case CARD_UNREGISTER:
-                       fprintf(stderr,"CARD_UNREGISTER\n");
+                       DPRINTF("CARD_UNREGISTER\n");
 #ifndef NO_WINDRVR
                        ret = (*ioctl_func) (fd, request, wdioctl);
 #endif
                        break;
 
                case EVENT_PULL:
-#ifdef DEBUG
-                       fprintf(stderr,"EVENT_PULL\n");
-#endif
+                       DPRINTF("EVENT_PULL\n");
                        {
                                struct event *e = (struct event*)(wdheader->data);
 #ifdef DEBUG
                                int i;
 
-                               fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
+                               DPRINTF("handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n",
+                               e->handle, e->dwAction, e->dwStatus,
+                               e->dwEventId, e->dwCardType, e->hKernelPlugIn,
+                               e->dwOptions, e->u.Usb.deviceId.dwVendorId,
+                               e->u.Usb.deviceId.dwProductId,
+                               e->u.Usb.dwUniqueID, e->dwEventVer,
+                               e->dwNumMatchTables);
+
                                for (i = 0; i < e->dwNumMatchTables; i++)
-                                       fprintf(stderr,"match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
+                                       DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
+                                       e->matchTables[i].VendorId,
+                                       e->matchTables[i].ProductId,
+                                       e->matchTables[i].bDeviceClass,
+                                       e->matchTables[i].bDeviceSubClass,
+                                       e->matchTables[i].bInterfaceClass,
+                                       e->matchTables[i].bInterfaceSubClass,
+                                       e->matchTables[i].bInterfaceProtocol);
 #endif
 
 #ifndef NO_WINDRVR
@@ -563,9 +616,23 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #endif
 
 #ifdef DEBUG
-                               fprintf(stderr,"handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n", e->handle, e->dwAction, e->dwStatus, e->dwEventId, e->dwCardType, e->hKernelPlugIn, e->dwOptions, e->u.Usb.deviceId.dwVendorId, e->u.Usb.deviceId.dwProductId, e->u.Usb.dwUniqueID, e->dwEventVer, e->dwNumMatchTables);
+                               DPRINTF("handle: %lu, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: %lu, ver: %lu, nummatch: %lu\n",
+                               e->handle, e->dwAction, e->dwStatus,
+                               e->dwEventId, e->dwCardType, e->hKernelPlugIn,
+                               e->dwOptions, e->u.Usb.deviceId.dwVendorId,
+                               e->u.Usb.deviceId.dwProductId,
+                               e->u.Usb.dwUniqueID, e->dwEventVer,
+                               e->dwNumMatchTables);
+
                                for (i = 0; i < e->dwNumMatchTables; i++)
-                                       fprintf(stderr,"match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", e->matchTables[i].VendorId, e->matchTables[i].ProductId, e->matchTables[i].bDeviceClass, e->matchTables[i].bDeviceSubClass, e->matchTables[i].bInterfaceClass, e->matchTables[i].bInterfaceSubClass, e->matchTables[i].bInterfaceProtocol);
+                                       DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
+                                       e->matchTables[i].VendorId,
+                                       e->matchTables[i].ProductId,
+                                       e->matchTables[i].bDeviceClass,
+                                       e->matchTables[i].bDeviceSubClass,
+                                       e->matchTables[i].bInterfaceClass,
+                                       e->matchTables[i].bInterfaceSubClass,
+                                       e->matchTables[i].bInterfaceProtocol);
 #endif
 
                        }
@@ -582,14 +649,13 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
        return ret;
 }
 
-int ioctl(int fd, int request, ...)
-{
+int ioctl(int fd, int request, ...) {
        va_list args;
        void *argp;
        int ret;
 
        if (!ioctl_func)                                                                    
-               ioctl_func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "ioctl");             
+               ioctl_func = (int (*) (int, int, void *)) dlsym (RTLD_NEXT, "ioctl");             
 
        va_start (args, request);
        argp = va_arg (args, void *);
@@ -603,17 +669,14 @@ int ioctl(int fd, int request, ...)
        return ret;
 }
 
-typedef int (*open_funcptr_t) (const char *, int, mode_t);
-
-int open (const char *pathname, int flags, ...)
-{
-       static open_funcptr_t func = NULL;
+int open (const char *pathname, int flags, ...) {
+       static int (*func) (const char *, int, mode_t) = NULL;
        mode_t mode = 0;
        va_list args;
        int fd;
 
        if (!func)
-               func = (open_funcptr_t) dlsym (REAL_LIBC, "open");
+               func = (int (*) (const char *, int, mode_t)) dlsym (RTLD_NEXT, "open");
 
        if (flags & O_CREAT) {
                va_start(args, flags);
@@ -622,9 +685,7 @@ int open (const char *pathname, int flags, ...)
        }
 
        if (!strcmp (pathname, "/dev/windrvr6")) {
-#ifdef DEBUG
-               fprintf(stderr,"opening windrvr6\n");
-#endif
+               DPRINTF("opening windrvr6\n");
 #ifdef NO_WINDRVR
                windrvrfd = fd = (*func) ("/dev/null", flags, mode);
 #else
@@ -648,13 +709,11 @@ int close(int fd) {
        static int (*func) (int) = NULL;
 
        if (!func)
-               func = (int (*) (int)) dlsym(REAL_LIBC, "close");
+               func = (int (*) (int)) dlsym(RTLD_NEXT, "close");
        
-       if (fd == windrvrfd) {
-#ifdef DEBUG
-               fprintf(stderr,"close windrvrfd\n");
-#endif
-               windrvrfd = 0;
+       if (fd == windrvrfd && windrvrfd >= 0) {
+               DPRINTF("close windrvrfd\n");
+               windrvrfd = -1;
        }
 
        return (*func) (fd);
@@ -665,14 +724,12 @@ FILE *fopen(const char *path, const char *mode) {
        static FILE* (*func) (const char*, const char*) = NULL;
 
        if (!func)
-               func = (FILE* (*) (const char*, const char*)) dlsym(REAL_LIBC, "fopen");
+               func = (FILE* (*) (const char*, const char*)) dlsym(RTLD_NEXT, "fopen");
 
        ret = (*func) (path, mode);
 
        if (!strcmp (path, "/proc/modules")) {
-#ifdef DEBUG
-               fprintf(stderr,"opening /proc/modules\n");
-#endif
+               DPRINTF("opening /proc/modules\n");
 #ifdef NO_WINDRVR
                modulesfp = ret;
                modules_read = 0;
@@ -684,18 +741,18 @@ FILE *fopen(const char *path, const char *mode) {
 
 char *fgets(char *s, int size, FILE *stream) {
         static char* (*func) (char*, int, FILE*) = NULL;
-       const char modules[] = "windrvr6 160960 0 - Live 0xf98b0000\n";
+       const char modules[][256] = {"windrvr6 1 0 - Live 0xdeadbeef\n", "parport_pc 1 0 - Live 0xdeadbeef\n"};
        char *ret = NULL;
 
 
        if (!func)
-               func = (char* (*) (char*, int, FILE*)) dlsym(REAL_LIBC, "fgets");
+               func = (char* (*) (char*, int, FILE*)) dlsym(RTLD_NEXT, "fgets");
        
        if (modulesfp == stream) {
-               if (!modules_read) {
-                       strcpy(s, modules);
+               if (modules_read < sizeof(modules)) {
+                       strcpy(s, modules[modules_read]);
                        ret = s;
-                       modules_read = 1;
+                       modules_read++;
                }
        } else {
                ret = (*func)(s,size,stream);
@@ -708,7 +765,7 @@ int fclose(FILE *fp) {
        static int (*func) (FILE*) = NULL;
 
        if (!func)
-               func = (int (*) (FILE*)) dlsym(REAL_LIBC, "fclose");
+               func = (int (*) (FILE*)) dlsym(RTLD_NEXT, "fclose");
 
        if (fp == modulesfp) {
                modulesfp = NULL;
@@ -716,4 +773,16 @@ int fclose(FILE *fp) {
        
        return (*func)(fp);
 }
-#endif
+
+int access(const char *pathname, int mode) {
+       static int (*func) (const char*, int);
+
+       if (!func)
+               func = (int (*) (const char*, int)) dlsym(RTLD_NEXT, "access");
+       
+       if (!strcmp(pathname, "/dev/windrvr6")) {
+               return 0;
+       } else {
+               return (*func)(pathname, mode);
+       }
+}
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