diff options
| author | Pawel Laszczak <pawell@cadence.com> | 2021-03-15 10:17:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-18 11:02:27 +0300 |
| commit | 6a154ec9ef6762c774cd2b50215c7a8f0f08a862 (patch) | |
| tree | bcabbf30e6fffc062f7a4f26616bfc434f78f2fb /include/uapi/linux/usb | |
| parent | 98f11978bdcef447c27a18735cea28b81847b8b3 (diff) | |
| download | linux-6a154ec9ef6762c774cd2b50215c7a8f0f08a862.tar.xz | |
usb: webcam: Invalid size of Processing Unit Descriptor
According with USB Device Class Definition for Video Device the
Processing Unit Descriptor bLength should be 12 (10 + bmControlSize),
but it has 11.
Invalid length caused that Processing Unit Descriptor Test Video form
CV tool failed. To fix this issue patch adds bmVideoStandards into
uvc_processing_unit_descriptor structure.
The bmVideoStandards field was added in UVC 1.1 and it wasn't part of
UVC 1.0a.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Reviewed-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20210315071748.29706-1-pawell@gli-login.cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/usb')
| -rw-r--r-- | include/uapi/linux/usb/video.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/uapi/linux/usb/video.h b/include/uapi/linux/usb/video.h index d854cb19c42c..bfdae12cdacf 100644 --- a/include/uapi/linux/usb/video.h +++ b/include/uapi/linux/usb/video.h @@ -302,9 +302,10 @@ struct uvc_processing_unit_descriptor { __u8 bControlSize; __u8 bmControls[2]; __u8 iProcessing; + __u8 bmVideoStandards; } __attribute__((__packed__)); -#define UVC_DT_PROCESSING_UNIT_SIZE(n) (9+(n)) +#define UVC_DT_PROCESSING_UNIT_SIZE(n) (10+(n)) /* 3.7.2.6. Extension Unit Descriptor */ struct uvc_extension_unit_descriptor { |