On Sat, 14 Jan 2012, Sergey Spiridonov wrote: > >> i.e. the device presents 32k of cosumer usages, which is beyond the limit > >> on the number of usages the current parser in the kernel supports (12288). > >> Bumping up the HID_MAX_USAGES constant would work around the problem, but > >> I don't believe the keyboard is actually generating such a wide range of > >> consumer page usages. > > > > I recompiled kernel with the bigger HID_MAX_USAGES. Keyboard starts > > working, except for certain keys. I tested it again with Windows, and > > those keys do not work with Windows too. So I suspect that this device > > is most probably broken. I requested replacement for this device. > > Today I got substitution for the broken keyboard. This new device is > working with the increased HID_MAX_USAGES and it does not work with the > default value of HID_MAX_USAGES. > > If increasing of the default value of the HID_MAX_USAGES is not possible > for some reason, can it be made boot time adjustable or, maybe, just > ignore huge reported value from the device and try to proceed anyway? Fixing the report descriptor probably is the best way to go here. Could you please send me output of cat /sys/kernel/debug/hid/<device>/rdesc for that particular device? I'll send you a patch to test. Thanks, -- Jiri Kosina SUSE Labs -- 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
