From: Tomas Carnecky <tom@dbservice.com>
To: Jiri Kosina <jkosina@suse.cz>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: hid device not claimed but /dev/input/event exists
Date: Tue, 19 Feb 2008 18:42:45 +0100 [thread overview]
Message-ID: <47BB1515.1070608@dbservice.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0802191751040.7699@twin.jikos.cz>
[-- Attachment #1: Type: text/plain, Size: 1588 bytes --]
Jiri Kosina wrote:
> On Tue, 19 Feb 2008, Tomas Carnecky wrote:
>
>> usb 1-2.2: new full speed USB device using ehci_hcd and address 6
>> usb 1-2.2: configuration #1 chosen from 1 choice
>> HID device claimed by neither input, hiddev nor hidraw
>> input: Logitech Z-10 USB Speaker as
>> /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2.2/1-2.2:1.3/input/input4
>> input: USB HID v1.10 Device [Logitech Z-10 USB Speaker] on
>> usb-0000:00:02.1-2.2
>> Nobody claims the device and yet an evdev device shows up in /dev/input? That
>
> Yes, that looks indeed bogus.
>
>> I enabled HID_DEBUG, but no debug messages show up in my dmesg output,
>> which is strange.
>
> You have to modprobe the 'hid' module with 'debug=1' parameter. Please
> send me the resulting output.
>
Attached is the dump from dmesg.
The device apparently has four 'interfaces' - whatever that is, see [1].
It seems like usbhid probes interface 2 (which is the LCD plus a few
buttons, probably the four just under the LCD, as described [1]).
Because usbhid doesn't know how to handle the buttons, it fails. But
then it probes interface 3 which is a 'proper' HID device with
well-defined buttons.
But still nothing shows up if I press the buttons. But something is
strange, neither does when I press buttons on my sidewinder pad. Unless
I 'cat /dev/input/event5' and then press the buttons, then they shows up
in dmesg. But that trick doesn't work with the Z-10 speakers. Maybe the
alsa driver is interfering somehow?
[1]
http://forums.logitech.com/logitech/board/message?board.id=stereo_20&message.id=633#M633
[-- Attachment #2: dump --]
[-- Type: text/plain, Size: 20930 bytes --]
usb 1-2.2: new full speed USB device using ehci_hcd and address 8
usb 1-2.2: configuration #1 chosen from 1 choice
drivers/hid/usbhid/hid-core.c: HID probe called for ifnum 2
drivers/hid/usbhid/hid-core.c: report descriptor (size 46, read 46) = 06 00 ff 09 00 a1 01 15 00 26 ff 00 75 08 95 08 06 00 ff 09 02 85 02 06 00 ff 09 03 81 02 09 04 95 03 b1 02 09 06 85 03 96 df 03 91 02 c0
drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0102 wIndex=0x0002 wLength=9
drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0302 wIndex=0x0002 wLength=4
INPUT(2)[INPUT]
Field(0)
Usage(8)
ff00.0002
ff00.0003
ff00.0003
ff00.0003
ff00.0003
ff00.0003
ff00.0003
ff00.0003
Logical Minimum(0)
Logical Maximum(255)
Report Size(8)
Report Count(8)
Report Offset(0)
Flags( Variable Absolute )
OUTPUT(3)[OUTPUT]
Field(0)
Usage(991)
ff00.0006
ff00.0006
ff00.0006
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Logical Minimum(0)
Logical Maximum(255)
Report Size(8)
Report Count(991)
Report Offset(0)
Flags( Variable Absolute )
FEATURE(2)[FEATURE]
Field(0)
Usage(3)
ff00.0004
ff00.0004
ff00.0004
Logical Minimum(0)
Logical Maximum(255)
Report Size(8)
Report Count(3)
Report Offset(0)
Flags( Variable Absolute )
HID device claimed by neither input, hiddev nor hidraw
drivers/hid/usbhid/hid-core.c: HID probe called for ifnum 3
drivers/hid/usbhid/hid-core.c: report descriptor (size 41, read 41) = 05 0c 09 01 a1 01 09 e9 09 ea 09 e2 09 b3 09 b4 09 b5 09 b6 09 b7 09 cd 15 00 25 01 95 09 75 01 81 02 95 01 75 07 81 01 c0
drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0100 wIndex=0x0003 wLength=2
INPUT[INPUT]
Field(0)
Usage(9)
Consumer.00e9
Consumer.00ea
Consumer.00e2
Consumer.00b3
Consumer.00b4
Consumer.00b5
Consumer.00b6
Consumer.00b7
Consumer.00cd
Logical Minimum(0)
Logical Maximum(1)
Report Size(1)
Report Count(9)
Report Offset(0)
Flags( Variable Absolute )
drivers/hid/hid-input.c: Mapping: Consumer.00e9 ---> Key.VolumeUp
drivers/hid/hid-input.c: Mapping: Consumer.00ea ---> Key.VolumeDown
drivers/hid/hid-input.c: Mapping: Consumer.00e2 ---> Key.Mute
drivers/hid/hid-input.c: Mapping: Consumer.00b3 ---> Key.FastForward
drivers/hid/hid-input.c: Mapping: Consumer.00b4 ---> Key.Rewind
drivers/hid/hid-input.c: Mapping: Consumer.00b5 ---> Key.NextSong
drivers/hid/hid-input.c: Mapping: Consumer.00b6 ---> Key.PreviousSong
drivers/hid/hid-input.c: Mapping: Consumer.00b7 ---> Key.StopCD
drivers/hid/hid-input.c: Mapping: Consumer.00cd ---> Key.PlayPause
input: Logitech Z-10 USB Speaker as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2.2/1-2.2:1.3/input/input6
input: USB HID v1.10 Device [Logitech Z-10 USB Speaker] on usb-0000:00:02.1-2.2
drivers/hid/hid-core.c: report (size 8) (unnumbered)
drivers/hid/hid-core.c: report 0 (size 8) = 00 00 28 00 00 00 00 00
next prev parent reply other threads:[~2008-02-19 17:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-19 16:30 hid device not claimed but /dev/input/event exists Tomas Carnecky
2008-02-19 16:51 ` Jiri Kosina
2008-02-19 17:42 ` Tomas Carnecky [this message]
2008-02-19 17:48 ` Jiri Kosina
2008-02-19 18:11 ` Tomas Carnecky
2008-02-19 18:19 ` Tomas Carnecky
2008-02-19 20:03 ` Jiri Kosina
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--in-reply-to=47BB1515.1070608@dbservice.com \
--to=tom@dbservice.com \
--cc=jkosina@suse.cz \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.