From: Michael Gernoth <michael@gernoth.net>
Date: Fri, 11 Apr 2008 13:36:07 +0000 (+0200)
Subject: add xpcu_set_interface
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver/commitdiff_plain/0c2db148a4e604ceeab5eda38efcf64d1ef25c76

add xpcu_set_interface
---

diff --git a/usb-driver.c b/usb-driver.c
index 566b10b..1a37f54 100644
--- a/usb-driver.c
+++ b/usb-driver.c
@@ -229,20 +229,7 @@ static int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #ifndef NO_WINDRVR
 				ret = (*ioctl_func) (fd, request, wdioctl);
 #else
-				if (xpcu->dev) {
-					if (!xpcu->handle) {
-						xpcu->handle = usb_open(xpcu->dev);
-#ifndef NO_USB_RESET
-						if (xpcu->handle) {
-							usb_reset(xpcu->handle);
-							xpcu->handle = usb_open(xpcu->dev);
-						}
-#endif
-					}
-
-					xpcu->interface = xpcu->dev->config[0].interface[usi->dwInterfaceNum].altsetting[usi->dwAlternateSetting].bInterfaceNumber;
-					xpcu->alternate = usi->dwAlternateSetting;
-				}
+				xpcu_set_interface(xpcu, usi);
 #endif
 				DPRINTF("unique: %lu, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
 				usi->dwUniqueID, usi->dwInterfaceNum,
diff --git a/xpcu.c b/xpcu.c
index 17ab7cb..de23d9e 100644
--- a/xpcu.c
+++ b/xpcu.c
@@ -232,6 +232,23 @@ int xpcu_transfer(struct xpcu_s *xpcu, struct usb_transfer *ut) {
 	return ret;
 }
 
+void xpcu_set_interface(struct xpcu_s *xpcu, struct usb_set_interface *usi) {
+	if (xpcu->dev) {
+		if (!xpcu->handle) {
+			xpcu->handle = usb_open(xpcu->dev);
+#ifndef NO_USB_RESET
+			if (xpcu->handle) {
+				usb_reset(xpcu->handle);
+				xpcu->handle = usb_open(xpcu->dev);
+			}
+#endif
+		}
+
+		xpcu->interface = xpcu->dev->config[0].interface[usi->dwInterfaceNum].altsetting[usi->dwAlternateSetting].bInterfaceNumber;
+		xpcu->alternate = usi->dwAlternateSetting;
+	}
+}
+
 struct xpcu_s *xpcu_open(void) {
 	static struct xpcu_s xpcu;
 
diff --git a/xpcu.h b/xpcu.h
index fb8fd55..eeb25eb 100644
--- a/xpcu.h
+++ b/xpcu.h
@@ -11,5 +11,6 @@ struct xpcu_s {
 
 int __attribute__ ((visibility ("hidden"))) xpcu_deviceinfo(struct xpcu_s *xpcu, unsigned char *buf);
 int __attribute__ ((visibility ("hidden"))) xpcu_transfer(struct xpcu_s *xpcu, struct usb_transfer *ut);
+void __attribute__ ((visibility ("hidden"))) xpcu_set_interface(struct xpcu_s *xpcu, struct usb_set_interface *usi);
 struct xpcu_s __attribute__ ((visibility ("hidden"))) *xpcu_open(void);
 void __attribute__ ((visibility ("hidden"))) xpcu_close(struct xpcu_s *xpcu);