[linux-uvc-devel] Support for Celestron Skyris 132C

[James Fidell]

This is a UVC camera that generates the following messages when plugged
in (on my Mint 17 machine running kernel 3.13.0)

[16334.963038] usb 4-1.4: new SuperSpeed USB device number 4 using xhci_hcd
[16334.979611] usb 4-1.4: New USB device found, idVendor=199e,
idProduct=8458
[16334.979616] usb 4-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[16334.979619] usb 4-1.4: Product: SKYRIS 132C
[16334.979621] usb 4-1.4: Manufacturer: Celestron
[16334.979623] usb 4-1.4: SerialNumber: 19414148
[16335.039354] uvcvideo: Unknown video format
47425247-0000-0010-8000-00aa00389b71
[16335.039360] uvcvideo: Found UVC 1.10 device SKYRIS 132C (199e:8458)
[16335.040330] usbcore: registered new interface driver uvcvideo
[16335.040332] USB Video Class driver (1.1.1)


I want to use that video format. It's GRBG 8-bit raw colour. Do I
just need to add a new entry in uvcvideo.h:

#define UVC_GUID_FORMAT_SGRBG8 \
{ 'G', 'R', 'B', 'G', 0x00, 0x00, 0x00, 0x10, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}

and something like:


{
.name = "GRBG 8-bit",
.guid = UVC_GUID_FORMAT_SGRBG8,
.fcc = V4L2_PIX_FMT_SGRBG8,
},

to the uvc_fmts array in uvc_video.c, or are changes also required
elsewhere?

Thanks,
James

[James Fidell]

Post by James Fidell
I want to use that video format. It's GRBG 8-bit raw colour. Do I
#define UVC_GUID_FORMAT_SGRBG8 \
{ 'G', 'R', 'B', 'G', 0x00, 0x00, 0x00, 0x10, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}

I think there's a typo here. It should be

#define UVC_GUID_FORMAT_SGRBG8 \
{ 'G', 'R', 'B', 'G', 0x00, 0x00, 0x10, 0x00, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}

I believe.

Would be helpful to know that I'm on the right track with this though,
or if there might be other places the code needs to change.

James

[Paulo Assis]

Hi.
You should also post this in the linux-media mailing list (it will be
piked up faster):
http://linuxtv.org/lists.php

Just post it as a patch, so that it can be commented on.

Regards,
Paulo

Post by James Fidell

Post by James Fidell
I want to use that video format. It's GRBG 8-bit raw colour. Do I
#define UVC_GUID_FORMAT_SGRBG8 \
{ 'G', 'R', 'B', 'G', 0x00, 0x00, 0x00, 0x10, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}

I think there's a typo here. It should be
#define UVC_GUID_FORMAT_SGRBG8 \
{ 'G', 'R', 'B', 'G', 0x00, 0x00, 0x10, 0x00, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
I believe.
Would be helpful to know that I'm on the right track with this though,
or if there might be other places the code needs to change.
James
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