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authorPawel Laszczak <pawell@cadence.com>2021-03-15 10:17:48 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-18 11:02:27 +0300
commit6a154ec9ef6762c774cd2b50215c7a8f0f08a862 (patch)
treebcabbf30e6fffc062f7a4f26616bfc434f78f2fb /include/uapi/linux/usb
parent98f11978bdcef447c27a18735cea28b81847b8b3 (diff)
downloadlinux-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.h3
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 {