[libhid-discuss] problems with libhid and Oregon Scientific weather station WMRS203 (interrupt read)

Thu Jul 30 21:06:18 UTC 2009

Sorry for cluttering the list, but I just woudl like to make this work ...

jordi at puigmal:~$ dmesg | grep usb
[    0.602419] usbcore: registered new interface driver usbfs
[    0.602419] usbcore: registered new interface driver hub
[    0.602419] usbcore: registered new device driver usb
[    3.524080] usb usb1: configuration #1 chosen from 1 choice
[    3.544076] usb usb2: configuration #1 chosen from 1 choice
[    3.544430] usb usb3: configuration #1 chosen from 1 choice
[    3.544714] usb usb4: configuration #1 chosen from 1 choice
[    3.544998] usb usb5: configuration #1 chosen from 1 choice
[    3.545283] usb usb6: configuration #1 chosen from 1 choice
[    4.140028] usb 3-1: new full speed USB device using uhci_hcd and address
2
[    4.306669] usb 3-1: configuration #1 chosen from 1 choice
[    4.548452] usb 4-2: new low speed USB device using uhci_hcd and address
2
[    4.702786] usb 4-2: configuration #1 chosen from 1 choice
[   10.772854] usbcore: registered new interface driver btusb
[   11.110766] usbcore: registered new interface driver hiddev
[   11.123978] input: HID 047d:1062 as
/devices/pci0000:00/0000:00:1d.0/usb4/4-2/4-2:1.0/input/input5
[   11.125694] generic-usb 0003:047D:1062.0001: input,hidraw0: USB HID v1.00
Mouse [HID 047d:1062] on usb-0000:00:1d.0-2/input0
[   11.125715] usbcore: registered new interface driver usbhid
[   11.125718] usbhid: v2.6:USB HID core driver
[   78.544058] usb 4-1: new low speed USB device using uhci_hcd and address
3
[   78.718640] usb 4-1: configuration #1 chosen from 1 choice
[   78.735138] generic-usb 0003:0FDE:CA01.0002: hiddev96,hidraw1: USB HID
v1.10 Device [Universal Bridge] on usb-0000:00:1d.0-1/input0

The last three lines appear when the weather station is plugged in the
computer. Someone has pointed me out that in Ubuntu Jaunty the usbserial is
built-in in the kernel, however I don't see it in dmesg. I suppose that is
not the problem.

Jordi.

2009/7/30 Jordi Puigsegur <jordi.puigsegur at gmail.com>

> I found another directory under sys/bus where the device does appear:
>
> root at puigmal:/sys/bus/hid/drivers/generic-usb$ ls
> 0003:047D:1062.0002  0003:0FDE:CA01.0001  bind  module  uevent  unbind
>
> However, after doing the unbind, libhid returns the same error
>
> root at puigmal:/sys/bus/hid/drivers/generic-usb# echo -n
> "0003:0FDE:CA01.0001" > unbind
> root at puigmal:/sys/bus/hid/drivers/generic-usb# ls
> 0003:047D:1062.0002  bind  module  uevent  unbind
>
> jordi at puigmal:~/workspace/prova1/Debug$ sudo ./prova1
> [...]
>  NOTICE: hid_force_open(): successfully opened USB device 004/002[0].
> [...]
> WARNING: hid_interrupt_read(): failed to get interrupt read from device
> 004/002[0]: could not claim interface 0: Device or resource busy
> hid_interrupt_read failed with return code 21
>
> I'll keep trying.
> I am using ubuntu Jaunty and I just read there are issues with usbserial.
> Seems that this module has been added to the kernel and has caused some
> trouble. I'll try to investigate that..
>
> Thanks,
> Jordi.
>
> 2009/7/29 Jordi Puigsegur <jordi.puigsegur at gmail.com>
>
> Hi all,
>>
>>>
>>> When I was doing some libusb work, I found that I needed to unbind the
>>> interface from the driver before I could claim it with libusb. The
>>> interface will remain unclaimed until the device is connected again. I
>>> currently run the following commands to unbind the interface whenever
>>> I need to use the device and libusb can't claim the interface.
>>>
>>> # cd /sys/bus/usb/drivers/usbhid
>>> # echo -n interface > unbind
>>> "interface" is the name of the interface in the
>>> /sys/bus/usb/drivers/usbhid folder. For my device, it was something
>>> like "6-2:1.0". It will look similar for your device. From your lsusb
>>> output, I'd guess that your interface would have the identifier
>>> "4-2:1.0". The first part of that identifier varies based on which bus
>>> and port number your device is plugged into and the second part varies
>>> with the configuration number (usually always 1) and the interface
>>> number.
>>>
>>
>> I tried that, and the device doesn't appear in
>> /sys/bus/usb/drivers/usbhid. Nor does it appear under any
>> /sys/bus/usb/drivers directory:
>>
>> root at puigmal:/sys/bus/usb# ls -R
>> .:
>> devices  drivers  drivers_autoprobe  drivers_probe  uevent
>>
>> ./devices:
>> 1-0:1.0  3-1      3-1:1.2  4-1      4-2:1.0  usb1  usb4
>> 2-0:1.0  3-1:1.0  3-1:1.3  4-1:1.0  5-0:1.0  usb2  usb5
>> 3-0:1.0  3-1:1.1  4-0:1.0  4-2      6-0:1.0  usb3  usb6
>>
>> ./drivers:
>> btusb  hiddev  hub  usb  usbfs  usbhid
>>
>> ./drivers/btusb:
>> 3-1:1.0  3-1:1.1  bind  module  new_id  uevent  unbind
>>
>> ./drivers/hiddev:
>> bind  module  new_id  uevent  unbind
>>
>> ./drivers/hub:
>> 1-0:1.0  3-0:1.0  5-0:1.0  bind    new_id  unbind
>> 2-0:1.0  4-0:1.0  6-0:1.0  module  uevent
>>
>> ./drivers/usb:
>> 3-1  4-1  4-2  bind  uevent  unbind  usb1  usb2  usb3  usb4  usb5  usb6
>>
>> ./drivers/usbfs:
>> bind  module  new_id  uevent  unbind
>>
>> ./drivers/usbhid:
>> 4-1:1.0  4-2:1.0  bind  module  new_id  uevent  unbind
>>
>> root at puigmal:/sys/bus/usb# lsusb
>> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Bus 004 Device 004: ID 047d:1062 Kensington PocketMouse Max
>> Bus 004 Device 003: ID 0fde:ca01
>> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> Bus 003 Device 002: ID 03f0:171d Hewlett-Packard Wireless (Bluetooth +
>> WLAN) Interface [Integrated Module]
>> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>
>>
>> This was done just after starting the computer and plugging in the weather
>> station, before running any C program.
>>
>>  Might there be any other program claiming the interface? How could I
>> check that?
>>
>> Thanks,
>> Jordi
>>
>>
>
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