Am Tuesday 27 January 2009 20:55:20 schrieb Folkert van Heusden: > On Mon, Jan 26, 2009 at 08:11:19PM +0100, Oliver Neukum wrote: > > > 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. > > > > What kind of device is this? What happens if you try to use the device? > > Isn't it detected, do you get an error? > > It is a powerswitch that can be toggled via USB. Cleware also has > sensors (temperature, humidity, etc.) that all can be handled via a > commandline utility I wrote. > It has been a while but if i remember correctly the failing ioctl is for > determing the serial number of the device. That is required to talk to > the right device. http://www.vanheusden.com/clewarecontrol/ There's a known bug in hiddev. Please test the included 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; -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
