X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver/blobdiff_plain/25ba7a49098fb2f4c120293d8f7c7404e5d3687b..0c2db148a4e604ceeab5eda38efcf64d1ef25c76:/parport.c

diff --git a/parport.c b/parport.c
index 57ab083..b32b6e2 100644
--- a/parport.c
+++ b/parport.c
@@ -20,6 +20,12 @@ int parport_transfer(WD_TRANSFER *tr, int fd, unsigned int request, int ppbase,
 	unsigned char val;
 	static unsigned char last_pp_write = 0;
 
+	if (parportfd < 0)
+		return ret;
+
+	if (ioctl(parportfd, PPCLAIM) == -1)
+		return -1;
+
 	for (i = 0; i < num; i++) {
 		DPRINTF("dwPort: 0x%lx, cmdTrans: %lu, dwbytes: %ld, fautoinc: %ld, dwoptions: %ld\n",
 				(unsigned long)tr[i].dwPort, tr[i].cmdTrans, tr[i].dwBytes,
@@ -33,9 +39,6 @@ int parport_transfer(WD_TRANSFER *tr, int fd, unsigned int request, int ppbase,
 			DPRINTF("write byte: %d\n", val);
 #endif
 
-		if (parportfd < 0)
-			return ret;
-
 		if (port == ppbase + PP_DATA) {
 			DPRINTF("data port\n");
 			switch(tr[i].cmdTrans) {
@@ -114,6 +117,8 @@ int parport_transfer(WD_TRANSFER *tr, int fd, unsigned int request, int ppbase,
 #endif
 	}
 
+	ioctl(parportfd, PPRELEASE);
+
 	return ret;
 }
 
@@ -139,6 +144,7 @@ int parport_open(int num) {
 		if (ioctl(parportfd, PPNEGOT, &pmode) == -1)
 			return -1;
 
+		ioctl(parportfd, PPRELEASE);
 #if 0
 		if (cr->Card.dwItems > 1 && cr->Card.Item[1].I.IO.dwAddr) {
 			DPRINTF("ECP mode requested\n");