X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fusb%2Fclass%2Fusblp.c;h=8836be09559eb7c806c6e2d4a1d9f4e944b4405d;hb=78a6196531f0fe10aae05a9bc4c2701df614ac3d;hp=0e269d78810da96529646fdcfe8ef21bc0421d26;hpb=86090fcac5e27b630656fe3d963a6b80e26dac44;p=linux-2.6.git

diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 0e269d788..8836be095 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -226,11 +226,21 @@ extern struct usb_driver usblp_driver;
 
 static int usblp_ctrl_msg(struct usblp *usblp, int request, int type, int dir, int recip, int value, void *buf, int len)
 {
-	int retval = usb_control_msg(usblp->dev,
+	int retval;
+	int index = usblp->ifnum;
+
+	/* High byte has the interface index.
+	   Low byte has the alternate setting.
+	 */
+	if ((request == USBLP_REQ_GET_ID) && (type == USB_TYPE_CLASS)) {
+	  index = (usblp->ifnum<<8)|usblp->protocol[usblp->current_protocol].alt_setting;
+	}
+
+	retval = usb_control_msg(usblp->dev,
 		dir ? usb_rcvctrlpipe(usblp->dev, 0) : usb_sndctrlpipe(usblp->dev, 0),
-		request, type | dir | recip, value, usblp->ifnum, buf, len, USBLP_WRITE_TIMEOUT);
-	dbg("usblp_control_msg: rq: 0x%02x dir: %d recip: %d value: %d len: %#x result: %d",
-		request, !!dir, recip, value, len, retval);
+		request, type | dir | recip, value, index, buf, len, USBLP_WRITE_TIMEOUT);
+	dbg("usblp_control_msg: rq: 0x%02x dir: %d recip: %d value: %d idx: %d len: %#x result: %d",
+		request, !!dir, recip, value, index, len, retval);
 	return retval < 0 ? retval : 0;
 }
 
@@ -440,6 +450,9 @@ static int usblp_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 		goto done;
 	}
 
+	dbg("usblp_ioctl: cmd=0x%x (%c nr=%d len=%d dir=%d)", cmd, _IOC_TYPE(cmd),
+		_IOC_NR(cmd), _IOC_SIZE(cmd), _IOC_DIR(cmd) );
+
 	if (_IOC_TYPE(cmd) == 'P')	/* new-style ioctl number */
 
 		switch (_IOC_NR(cmd)) {