Laurent,
Thank you very much!!! That Works like a charm...
$ v4l2-ctl --list-formats
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'YUYV'
Name : YUV 4:2:2 (YUYV)
Index : 1
Type : Video Capture
Pixel Format: 'Y16 '
Name : Greyscale (16-bit)
-----Mensaje original-----
De: Laurent Pinchart [mailto:[email protected]]
Enviado el: lunes, 12 de abril de 2010 12:53
Para: Ricardo Martinez Monje
CC: [email protected]
Asunto: Re: [Linux-uvc-devel] How do I set PIXELFORMAT for...
Hi Ricardo,
On Monday 12 April 2010 12:39:44 Ricardo Martinez Monje wrote:
> Laurent,
>
> Here is the output for the device 17dc:0202
>
> http://pastebin.com/JU1qLmBS
Thanks. Could you please try the following patch ?
diff --git a/drivers/media/video/uvc/uvc_driver.c
b/drivers/media/video/uvc/uvc_driver.c
index 43892bf..c8dd892 100644
--- a/drivers/media/video/uvc/uvc_driver.c
+++ b/drivers/media/video/uvc/uvc_driver.c
@@ -90,10 +90,15 @@ static struct uvc_format_desc uvc_fmts[] = {
.fcc = V4L2_PIX_FMT_UYVY,
},
{
- .name = "Greyscale",
+ .name = "Greyscale (8-bit)",
.guid = UVC_GUID_FORMAT_Y800,
.fcc = V4L2_PIX_FMT_GREY,
},
+ {
+ .name = "Greyscale (16-bit)",
+ .guid = UVC_GUID_FORMAT_Y16,
+ .fcc = V4L2_PIX_FMT_Y16,
+ },
{
.name = "RGB Bayer",
.guid = UVC_GUID_FORMAT_BY8,
diff --git a/drivers/media/video/uvc/uvcvideo.h
b/drivers/media/video/uvc/uvcvideo.h
index 2bba059..d1f8840 100644
--- a/drivers/media/video/uvc/uvcvideo.h
+++ b/drivers/media/video/uvc/uvcvideo.h
@@ -131,11 +131,13 @@ struct uvc_xu_control {
#define UVC_GUID_FORMAT_Y800 \
{ 'Y', '8', '0', '0', 0x00, 0x00, 0x10, 0x00, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y16 \
+ { 'Y', '1', '6', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
#define UVC_GUID_FORMAT_BY8 \
{ 'B', 'Y', '8', ' ', 0x00, 0x00, 0x10, 0x00, \
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
-
/*
------------------------------------------------------------------------
* Driver specific constants.
*/
--
Regards,
Laurent Pinchart
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