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Commit f823b75f authored by Laurent Pinchart's avatar Laurent Pinchart
Browse files

usb: video: Fix endianness mismatches in descriptor structures 



All UVC descriptors use little-endian format, update the data structures
accordingly.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: default avatarPaul Elder <paul.elder@ideasonboard.com>
Tested-by: default avatarPaul Elder <paul.elder@ideasonboard.com>
parent d865d00d

include/uapi/linux/usb/video.h

+152 −152
Original line number Diff line number Diff line
@@ -195,9 +195,9 @@ struct uvc_header_descriptor { 
	__u8   bLength;

	__u8   bDescriptorType;

	__u8   bDescriptorSubType;

	__u16 bcdUVC;

	__u16 wTotalLength;

	__u32 dwClockFrequency;

	__le16 bcdUVC;

	__le16 wTotalLength;

	__le32 dwClockFrequency;

	__u8   bInCollection;

	__u8   baInterfaceNr[];

} __attribute__((__packed__));
@@ -212,9 +212,9 @@ struct UVC_HEADER_DESCRIPTOR(n) { \ 
	__u8   bLength;					\

	__u8   bDescriptorType;				\

	__u8   bDescriptorSubType;			\

	__u16 bcdUVC;					\

	__u16 wTotalLength;				\

	__u32 dwClockFrequency;				\

	__le16 bcdUVC;					\

	__le16 wTotalLength;				\

	__le32 dwClockFrequency;			\

	__u8   bInCollection;				\

	__u8   baInterfaceNr[n];			\

} __attribute__ ((packed))
@@ -225,7 +225,7 @@ struct uvc_input_terminal_descriptor { 
	__u8   bDescriptorType;

	__u8   bDescriptorSubType;

	__u8   bTerminalID;

	__u16 wTerminalType;

	__le16 wTerminalType;

	__u8   bAssocTerminal;

	__u8   iTerminal;

} __attribute__((__packed__));
@@ -238,7 +238,7 @@ struct uvc_output_terminal_descriptor { 
	__u8   bDescriptorType;

	__u8   bDescriptorSubType;

	__u8   bTerminalID;

	__u16 wTerminalType;

	__le16 wTerminalType;

	__u8   bAssocTerminal;

	__u8   bSourceID;

	__u8   iTerminal;
@@ -252,12 +252,12 @@ struct uvc_camera_terminal_descriptor { 
	__u8   bDescriptorType;

	__u8   bDescriptorSubType;

	__u8   bTerminalID;

	__u16 wTerminalType;

	__le16 wTerminalType;

	__u8   bAssocTerminal;

	__u8   iTerminal;

	__u16 wObjectiveFocalLengthMin;

	__u16 wObjectiveFocalLengthMax;

	__u16 wOcularFocalLength;

	__le16 wObjectiveFocalLengthMin;

	__le16 wObjectiveFocalLengthMax;

	__le16 wOcularFocalLength;

	__u8   bControlSize;

	__u8   bmControls[3];

} __attribute__((__packed__));
@@ -298,7 +298,7 @@ struct uvc_processing_unit_descriptor { 
	__u8   bDescriptorSubType;

	__u8   bUnitID;

	__u8   bSourceID;

	__u16 wMaxMultiplier;

	__le16 wMaxMultiplier;

	__u8   bControlSize;

	__u8   bmControls[2];

	__u8   iProcessing;
@@ -346,7 +346,7 @@ struct uvc_control_endpoint_descriptor { 
	__u8   bLength;

	__u8   bDescriptorType;

	__u8   bDescriptorSubType;

	__u16 wMaxTransferSize;

	__le16 wMaxTransferSize;

} __attribute__((__packed__));



#define UVC_DT_CONTROL_ENDPOINT_SIZE			5
@@ -357,7 +357,7 @@ struct uvc_input_header_descriptor { 
	__u8   bDescriptorType;

	__u8   bDescriptorSubType;

	__u8   bNumFormats;

	__u16 wTotalLength;

	__le16 wTotalLength;

	__u8   bEndpointAddress;

	__u8   bmInfo;

	__u8   bTerminalLink;
@@ -379,7 +379,7 @@ struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) { \ 
	__u8   bDescriptorType;				\

	__u8   bDescriptorSubType;			\

	__u8   bNumFormats;				\

	__u16 wTotalLength;				\

	__le16 wTotalLength;				\

	__u8   bEndpointAddress;			\

	__u8   bmInfo;					\

	__u8   bTerminalLink;				\
@@ -396,7 +396,7 @@ struct uvc_output_header_descriptor { 
	__u8   bDescriptorType;

	__u8   bDescriptorSubType;

	__u8   bNumFormats;

	__u16 wTotalLength;

	__le16 wTotalLength;

	__u8   bEndpointAddress;

	__u8   bTerminalLink;

	__u8   bControlSize;
@@ -414,7 +414,7 @@ struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) { \ 
	__u8   bDescriptorType;				\

	__u8   bDescriptorSubType;			\

	__u8   bNumFormats;				\

	__u16 wTotalLength;				\

	__le16 wTotalLength;				\

	__u8   bEndpointAddress;			\

	__u8   bTerminalLink;				\

	__u8   bControlSize;				\
@@ -478,14 +478,14 @@ struct uvc_frame_uncompressed { 
	__u8   bDescriptorSubType;

	__u8   bFrameIndex;

	__u8   bmCapabilities;

	__u16 wWidth;

	__u16 wHeight;

	__u32 dwMinBitRate;

	__u32 dwMaxBitRate;

	__u32 dwMaxVideoFrameBufferSize;

	__u32 dwDefaultFrameInterval;

	__le16 wWidth;

	__le16 wHeight;

	__le32 dwMinBitRate;

	__le32 dwMaxBitRate;

	__le32 dwMaxVideoFrameBufferSize;

	__le32 dwDefaultFrameInterval;

	__u8   bFrameIntervalType;

	__u32 dwFrameInterval[];

	__le32 dwFrameInterval[];

} __attribute__((__packed__));



#define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n)		(26+4*(n))
@@ -500,14 +500,14 @@ struct UVC_FRAME_UNCOMPRESSED(n) { \ 
	__u8   bDescriptorSubType;			\

	__u8   bFrameIndex;				\

	__u8   bmCapabilities;				\

	__u16 wWidth;					\

	__u16 wHeight;					\

	__u32 dwMinBitRate;				\

	__u32 dwMaxBitRate;				\

	__u32 dwMaxVideoFrameBufferSize;		\

	__u32 dwDefaultFrameInterval;			\

	__le16 wWidth;					\

	__le16 wHeight;					\

	__le32 dwMinBitRate;				\

	__le32 dwMaxBitRate;				\

	__le32 dwMaxVideoFrameBufferSize;		\

	__le32 dwDefaultFrameInterval;			\

	__u8   bFrameIntervalType;			\

	__u32 dwFrameInterval[n];			\

	__le32 dwFrameInterval[n];			\

} __attribute__ ((packed))



/* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */
@@ -534,14 +534,14 @@ struct uvc_frame_mjpeg { 
	__u8   bDescriptorSubType;

	__u8   bFrameIndex;

	__u8   bmCapabilities;

	__u16 wWidth;

	__u16 wHeight;

	__u32 dwMinBitRate;

	__u32 dwMaxBitRate;

	__u32 dwMaxVideoFrameBufferSize;

	__u32 dwDefaultFrameInterval;

	__le16 wWidth;

	__le16 wHeight;

	__le32 dwMinBitRate;

	__le32 dwMaxBitRate;

	__le32 dwMaxVideoFrameBufferSize;

	__le32 dwDefaultFrameInterval;

	__u8   bFrameIntervalType;

	__u32 dwFrameInterval[];

	__le32 dwFrameInterval[];

} __attribute__((__packed__));



#define UVC_DT_FRAME_MJPEG_SIZE(n)			(26+4*(n))
@@ -556,14 +556,14 @@ struct UVC_FRAME_MJPEG(n) { \ 
	__u8   bDescriptorSubType;			\

	__u8   bFrameIndex;				\

	__u8   bmCapabilities;				\

	__u16 wWidth;					\

	__u16 wHeight;					\

	__u32 dwMinBitRate;				\

	__u32 dwMaxBitRate;				\

	__u32 dwMaxVideoFrameBufferSize;		\

	__u32 dwDefaultFrameInterval;			\

	__le16 wWidth;					\

	__le16 wHeight;					\

	__le32 dwMinBitRate;				\

	__le32 dwMaxBitRate;				\

	__le32 dwMaxVideoFrameBufferSize;		\

	__le32 dwDefaultFrameInterval;			\

	__u8   bFrameIntervalType;			\

	__u32 dwFrameInterval[n];			\

	__le32 dwFrameInterval[n];			\

} __attribute__ ((packed))



#endif /* __LINUX_USB_VIDEO_H */