Re: 2.6.29rc1 breakes usb: hiddev device no longer available

Am Monday 26 January 2009 19:27:07 schrieb Folkert van Heusden:

quoted

Since version 2.6.29rc1 querying cleware USb devices no longer works.
2.6.28 works fine. 2.6.29-rc2 also no longer works.

the is the FAILURE situation (2.6.29-rc*):
open("/dev/usb/hiddev0", O_RDWR)        = 3
ioctl(3, HIDIOCGDEVINFO, 0xbf90c0d8)    = 0
ioctl(3, HIDIOCAPPLICATION, 0)          = -6291455
ioctl(3, HIDIOCGSTRING, 0x804e2c0)      = -1 ENODEV (No such device)

Please try this patch.

	Regards
		Oliver

--

--- linux-2.6/drivers/hid/usbhid/hiddev.c.alt	2009-01-26 20:03:10.000000000 +0100
+++ linux-2.6/drivers/hid/usbhid/hiddev.c	2009-01-26 20:03:17.000000000 +0100

@@ -656,7 +656,7 @@ static long hiddev_ioctl(struct file *fi
 
 	case HIDIOCGSTRING:
 		mutex_lock(&hiddev->existancelock);
-		if (!hiddev->exist)
+		if (hiddev->exist)
 			r = hiddev_ioctl_string(hiddev, cmd, user_arg);
 		else
 			r = -ENODEV;