From 24f3ba4a4b4c471ce60d59b73762f37b4bfacde6 Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Mon, 11 Sep 2017 15:42:07 +0100 Subject: [PATCH 330/454] videodev2: Add helper defines for printing FOURCCs New helper defines that allow printing of a FOURCC using printf(V4L2_FOURCC_CONV, V4L2_FOURCC_CONV_ARGS(fourcc)); Signed-off-by: Dave Stevenson --- include/uapi/linux/videodev2.h | 5 +++++ 1 file changed, 5 insertions(+) --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -82,6 +82,11 @@ ((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24)) #define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1 << 31)) +#define V4L2_FOURCC_CONV "%c%c%c%c%s" +#define V4L2_FOURCC_CONV_ARGS(fourcc) \ + (fourcc) & 0x7f, ((fourcc) >> 8) & 0x7f, ((fourcc) >> 16) & 0x7f, \ + ((fourcc) >> 24) & 0x7f, (fourcc) & BIT(31) ? "-BE" : "" + /* * E N U M S */