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To: linux-kernel@vger.kernel.org
From: Jonathan Hudson <jonathan@daria.co.uk>
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X-Comment-To: Oliver Feiler
References: <fa.egf7e0v.kk5a2@ifi.uio.no>
Subject: Re: 2.4.19, USB_HID only works compiled in, not as module
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In article <fa.egf7e0v.kk5a2@ifi.uio.no>,
	Oliver Feiler <kiza@gmx.net> writes:
OF> Hi,
OF> 
OF> Since 2.4.19 a usb mouse does not work anymore if
OF> 
OF> CONFIG_USB_HID=m
OF> and
OF> CONFIG_INPUT_MOUSEDEV=m
OF> 
OF> is set. It only works if both are compiled into the kernel. Yes, I have set
OF> CONFIG_USB_HIDINPUT=y.
OF> 
OF> I've also seen other complaints about usb mice not working in 2.4.19, I guess 
OF> that's the problem?
OF> 
OF> If the stuff is compiled as modules, everything seems to be fine. The kernel 
OF> messages are the same, everything is detected fine. Except that 'cat 
OF> /dev/input/mice' does not give any output if the driver is compiled as 
OF> module.
OF> 

Not so. USB Mouse works just fine here on 2.4.19.

$ lsmod
....
mousedev                4352   1
hid                    14112   0 (unused)
input                   3328   0 [mousedev hid]
....

CONFIG_INPUT=m
# CONFIG_INPUT_KEYBDEV is not set
CONFIG_INPUT_MOUSEDEV=m
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1280
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1024

CONFIG_USB_HID=m
CONFIG_USB_HIDINPUT=y
# CONFIG_USB_HIDDEV is not set

'cat /dev/input/mice' (a cat and mouse game?) gives output as well.

So there appears to be no generic 2.4.19 problem.

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