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List:       linux-input
Subject:    4.18 regression: composite usb mouse/keyboard went mad
From:       Harald Dunkel <harri () afaics ! de>
Date:       2018-11-04 19:34:31
Message-ID: ad660f40-6035-3690-9851-e1d976a461d4 () afaics ! de
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On 11/4/18 11:21 AM, Michel Hermier wrote:
> Maybe not a useful comments: but what does the udev see ?
> 

Attached you can find the output of *udevadm monitor -p*, when I insert
the USB dongle.

> In /dev/input/by-id/ you should have all the symbolic symbols of the input devices \
> to their input sources. Did it changes between the 2 versions? 

Yes. 4.17.19:

% ls -al /dev/input/by-id/
total 0
drwxr-xr-x 2 root root 160 Nov  4 19:54 .
drwxr-xr-x 4 root root 540 Nov  4 19:54 ..
lrwxrwxrwx 1 root root   9 Nov  4 19:52 usb-13ba_Generic_USB_K_B-event-kbd -> \
../event1 lrwxrwxrwx 1 root root   9 Nov  4 19:52 \
usb-13ba_Generic_USB_K_B-if01-event-mouse -> ../event2 lrwxrwxrwx 1 root root   9 Nov \
4 19:52 usb-13ba_Generic_USB_K_B-if01-mouse -> ../mouse1 lrwxrwxrwx 1 root root  10 \
Nov  4 19:54 usb-Usb_Composite_Device_Usb_Composite_Device-event-mouse -> ../event17 \
lrwxrwxrwx 1 root root  10 Nov  4 19:54 \
usb-Usb_Composite_Device_Usb_Composite_Device-if01-event-kbd -> ../event18 lrwxrwxrwx \
1 root root   9 Nov  4 19:54 usb-Usb_Composite_Device_Usb_Composite_Device-mouse -> \
../mouse2


4.18.17:

% ls -al /dev/input/by-id/
total 0
drwxr-xr-x 2 root root 200 Nov  4 19:57 .
drwxr-xr-x 4 root root 600 Nov  4 19:57 ..
lrwxrwxrwx 1 root root   9 Nov  4 19:56 usb-13ba_Generic_USB_K_B-event-if01 -> \
../event3 lrwxrwxrwx 1 root root   9 Nov  4 19:56 usb-13ba_Generic_USB_K_B-event-kbd \
-> ../event1 lrwxrwxrwx 1 root root   9 Nov  4 19:56 \
usb-13ba_Generic_USB_K_B-if01-event-mouse -> ../event2 lrwxrwxrwx 1 root root   9 Nov \
4 19:56 usb-13ba_Generic_USB_K_B-if01-mouse -> ../mouse1 lrwxrwxrwx 1 root root  10 \
Nov  4 19:57 usb-Usb_Composite_Device_Usb_Composite_Device-event-if00 -> ../event19 \
lrwxrwxrwx 1 root root  10 Nov  4 19:57 \
usb-Usb_Composite_Device_Usb_Composite_Device-event-mouse -> ../event18 lrwxrwxrwx 1 \
root root  10 Nov  4 19:57 \
usb-Usb_Composite_Device_Usb_Composite_Device-if01-event-kbd -> ../event21 lrwxrwxrwx \
1 root root   9 Nov  4 19:57 usb-Usb_Composite_Device_Usb_Composite_Device-mouse -> \
../mouse2

They are hard to compare, but apparently there is a new entry
usb-Usb_Composite_Device_Usb_Composite_Device-event-if00. Not sure if this
matters.


Regards
Harri


["udevadm_monitor_4.17.19.txt.gz" (application/gzip)]
["udevadm_monitor_4.18.17.txt.gz" (application/gzip)]

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