I'm using a logitech MX300 mouse (4 buttons + wheel) connected with his usb/ps2 adapter. Since kernel 2.6.15 (gentoo-sources kernel) I need to patch a kernel module to get 4th button working. Probably it works fine when connetted in usb as nobody else reported this problem. Next attached is my patch.
Created attachment 91286 [details, diff] Logitech-MX300.patch This patch works with gentoo-sources-2.6.17-r* kernel (and maybe with other kernels)
Where has this patch come from?
(In reply to comment #2) > Where has this patch come from? > I wrote it by myself. Updating to kernel 2.6.14 (the first with this problem) the 4th button stopped to work, so I used 'evtest' program (linuxtv-dvb-apps package) to check the problem. This is the output when the patch isn't applied: localhost ~ # evtest /dev/input/event0 Input driver version is 1.0.0 Input device ID: bus 0x11 vendor 0x2 product 0x2 version 0x6f Input device name: "PS2++ Logitech MX Mouse" Supported events: Event type 0 (Reset) Event code 0 (Reset) Event code 1 (Key) Event code 2 (Relative) Event type 1 (Key) Event code 272 (LeftBtn) Event code 273 (RightBtn) Event code 274 (MiddleBtn) Event code 276 (ExtraBtn) Event code 279 (?) Event type 2 (Relative) Event code 0 (X) Event code 1 (Y) Event code 8 (Wheel) Testing ... (interrupt to exit) Pressing 4th button nothing appens, so I tried it using a older kernel. With 2.6.11 kernel the output is: localhost ~ # evtest /dev/input/event0 Input driver version is 1.0.0 Input device ID: bus 0x11 vendor 0x2 product 0x6 version 0x6f Input device name: "ImExPS/2 Logitech Explorer Mouse" Supported events: Event type 0 (Reset) Event code 0 (Reset) Event code 1 (Key) Event code 2 (Relative) Event type 1 (Key) Event code 272 (LeftBtn) Event code 273 (RightBtn) Event code 274 (MiddleBtn) Event code 275 (SideBtn) Event code 276 (ExtraBtn) Event type 2 (Relative) Event code 0 (X) Event code 1 (Y) Event code 8 (Wheel) Testing ... (interrupt to exit) and pressing 4th button I get this output: Event: time 1152526035.287101, type 1 (Key), code 275 (SideBtn), value 1 Event: time 1152526035.287110, type 0 (Reset), code 0 (Reset), value 0 Event: time 1152526035.465554, type 1 (Key), code 275 (SideBtn), value 0 Event: time 1152526035.465562, type 0 (Reset), code 0 (Reset), value 0 I don't understand why 'ExtraBtn' is registered as the Logitech MX300 mouse has only 4 buttons (see http://www.tomshardware.com/2003/01/10/logitech_mx_mice/page6.html to get a picture). However, I have patched linux/drivers/input/mouse/logips2pp.c file changing 'PS2PP_EXTRA_BTN | PS2PP_TASK_BTN' with 'PS2PP_SIDE_BTN' and the 4th button started to work again.
This recently got pushed upstream: http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=0c19fcd83793be248f8108a52f895c8d0034b182 ... so we need to plonk this one for inclusion; thanks for the patch :)
Added to the linux-patches subversion repository. Will hit gentoo-sources as soon as I do a bump.
Patch in gentoo-sources-2.6.17-r5
Indeed, closing
