Re: webcamd not started automatically

From: Hans Petter Selasky <hps_at_selasky.org>
Date: Sat, 20 Feb 2021 17:41:27 +0100
On 2/20/21 5:09 PM, Jakob Alvermark wrote:
> On 2/20/21 5:00 PM, Hans Petter Selasky wrote:
>> On 2/20/21 3:33 PM, Jakob Alvermark wrote:
>>> # service webcamd start ugen1.7
>>> webcamd 19267 - - Attached to ugen1.7[0]
>>> # ls /var/run/webcamd.*
>>> /var/run/webcamd.1.7.0.pid    /var/run/webcamd.2.4.0.pid
>>> # cat /var/run/webcamd.1.7.0.pid
>>
>> It might be something in the devd script which only starts the one 
>> webcam. Can you dump the USB device descriptor for both webcams?
>>
>> usbconfig -d X.Y dump_device_desc
>>
>> Where X.Y are the numbers after ugen.
>>
> $ usbconfig -d 1.7 dump_device_desc
> ugen1.7: <vendor 0x046d product 0x0825> at usbus1, cfg=0 md=HOST 
> spd=HIGH (480Mbps) pwr=ON (500mA)
> 
>    bLength = 0x0012
>    bDescriptorType = 0x0001
>    bcdUSB = 0x0200
>    bDeviceClass = 0x00ef  <Miscellaneous device>
>    bDeviceSubClass = 0x0002
>    bDeviceProtocol = 0x0001
>    bMaxPacketSize0 = 0x0040
>    idVendor = 0x046d
>    idProduct = 0x0825
>    bcdDevice = 0x0012
>    iManufacturer = 0x0000  <no string>
>    iProduct = 0x0000  <no string>
>    iSerialNumber = 0x0002  <AE73A920>
>    bNumConfigurations = 0x0001
> 
> $ usbconfig -d 2.4 dump_device_desc
> ugen2.4: <Chicony Electronics Co.,Ltd. Integrated Camera> at usbus2, 
> cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)
> 
>    bLength = 0x0012
>    bDescriptorType = 0x0001
>    bcdUSB = 0x0201
>    bDeviceClass = 0x00ef  <Miscellaneous device>
>    bDeviceSubClass = 0x0002
>    bDeviceProtocol = 0x0001
>    bMaxPacketSize0 = 0x0040
>    idVendor = 0x04f2
>    idProduct = 0xb681
>    bcdDevice = 0x6926
>    iManufacturer = 0x0003  <Chicony Electronics Co.,Ltd.>
>    iProduct = 0x0001  <Integrated Camera>
>    iSerialNumber = 0x0002  <6926>
>    bNumConfigurations = 0x0001
> 

Also dump the configuration descriptor:

usbconfig -d X.Y dump_curr_config_desc

--HPS
Received on Sat Feb 20 2021 - 15:41:46 UTC

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