[linux-uvc-devel] Ekacom webcam needs quirks

[Andy S. <and...@gm...>]

An EKACOM A521 webcam wasn't recognised by Linux Mint 19.3 Tricia.

By Googling I ran the following:
echo 'options uvcvideo quirks=0x100' | sudo tee -a
/etc/modprobe.d/uvcvideo.conf
sudo rmmod uvcvideo
sudo modprobe uvcvideo

It then worked.

Apparently I need to report required quirks to this mailing list, so that's
what I'm doing. Output of dmesg is:

[ 1018.291418] usbcore: registered new interface driver uvcvideo
[ 1018.291420] USB Video Class driver (1.1.1)
[ 1098.854565] [UFW BLOCK] IN=enp5s0 OUT=
MAC=80:ee:73:9c:ca:24:a4:77:33:a7:06:c8:08:00 SRC=192.168.0.102
DST=192.168.0.126 LEN=546 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP
SPT=57391 DPT=37756 LEN=526
[ 1099.878737] [UFW BLOCK] IN=enp5s0 OUT=
MAC=80:ee:73:9c:ca:24:a4:77:33:a7:06:c8:08:00 SRC=192.168.0.102
DST=192.168.0.126 LEN=546 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP
SPT=38308 DPT=37756 LEN=526
[ 1100.908749] [UFW BLOCK] IN=enp5s0 OUT=
MAC=80:ee:73:9c:ca:24:a4:77:33:a7:06:c8:08:00 SRC=192.168.0.102
DST=192.168.0.126 LEN=546 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP
SPT=35820 DPT=37756 LEN=526
[ 1101.826463] [UFW BLOCK] IN=enp5s0 OUT=
MAC=80:ee:73:9c:ca:24:a4:77:33:a7:06:c8:08:00 SRC=192.168.0.102
DST=192.168.0.126 LEN=546 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP
SPT=56317 DPT=37756 LEN=526
[ 1161.103003] usb 3-2.2: new high-speed USB device number 7 using xhci_hcd
[ 1161.322863] usb 3-2.2: New USB device found, idVendor=1bcf,
idProduct=2283, bcdDevice= 9.04
[ 1161.322867] usb 3-2.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 1161.322869] usb 3-2.2: Product: Full HD webcam
[ 1161.322870] usb 3-2.2: Manufacturer: SHENZHEN AONI ELECTRONIC CO., LTD
[ 1161.322872] usb 3-2.2: SerialNumber: 20200904001
[ 1161.374180] uvcvideo: Found UVC 1.00 device Full HD webcam (1bcf:2283)
[ 1161.374182] uvcvideo: Forcing device quirks to 0x100 by module parameter
for testing purpose.
[ 1161.374183] uvcvideo: Please report required quirks to the
linux-uvc-devel mailing list.
[ 1161.442538] input: Full HD webcam: Full HD webcam as
/devices/pci0000:00/0000:00:1c.2/0000:04:00.0/usb3/3-2/3-2.2/3-2.2:1.0/input/input15
[ 1161.577366] [UFW BLOCK] IN=enp5s0 OUT=
MAC=80:ee:73:9c:ca:24:30:cd:a7:be:a3:26:08:00 SRC=192.168.0.200
DST=192.168.0.126 LEN=75 TOS=0x00 PREC=0x00 TTL=64 ID=1874 PROTO=UDP
SPT=161 DPT=22161 LEN=55
[ 1161.653891] usb 3-2.2: 3:1: cannot get freq at ep 0x86
[ 1161.740121] usb 3-2.2: 3:2: cannot get freq at ep 0x86
[ 1161.743059] [UFW BLOCK] IN=enp5s0 OUT=
MAC=80:ee:73:9c:ca:24:30:cd:a7:be:a3:26:08:00 SRC=192.168.0.200
DST=192.168.0.126 LEN=75 TOS=0x00 PREC=0x00 TTL=64 ID=2267 PROTO=UDP
SPT=161 DPT=22161 LEN=55
[ 1161.826576] usb 3-2.2: 3:3: cannot get freq at ep 0x86
[ 1161.909300] [UFW BLOCK] IN=enp5s0 OUT=
MAC=80:ee:73:9c:ca:24:30:cd:a7:be:a3:26:08:00 SRC=192.168.0.200
DST=192.168.0.126 LEN=75 TOS=0x00 PREC=0x00 TTL=64 ID=3186 PROTO=UDP
SPT=161 DPT=22161 LEN=55
[ 1161.977746] usb 3-2.2: Warning! Unlikely big volume range (=4096),
cval->res is probably wrong.
[ 1161.977750] usb 3-2.2: [7] FU [Mic Capture Volume] ch = 1, val = 0/4096/1
[ 1161.978147] usbcore: registered new interface driver snd-usb-audio

Thanks,
Andy.