diff options
Diffstat (limited to 'v4l2-apps/lib/libv4l/libv4l2/libv4l2-priv.h')
| -rw-r--r-- | v4l2-apps/lib/libv4l/libv4l2/libv4l2-priv.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/v4l2-apps/lib/libv4l/libv4l2/libv4l2-priv.h b/v4l2-apps/lib/libv4l/libv4l2/libv4l2-priv.h index e4edf91f2..203dcffaf 100644 --- a/v4l2-apps/lib/libv4l/libv4l2/libv4l2-priv.h +++ b/v4l2-apps/lib/libv4l/libv4l2/libv4l2-priv.h @@ -23,6 +23,15 @@ #include <pthread.h> #include <libv4lconvert.h> /* includes videodev2.h for us */ +/* On 32 bits archs we always use mmap2, on 64 bits archs there is no mmap2 */ +#ifdef __NR_mmap2 +#define SYS_mmap2 __NR_mmap2 +#define MMAP2_PAGE_SHIFT 12 +#else +#define SYS_mmap2 SYS_mmap +#define MMAP2_PAGE_SHIFT 0 +#endif + #define V4L2_MAX_DEVICES 16 /* Warning when making this larger the frame_queued and frame_mapped members of the v4l2_dev_info struct can no longer be a bitfield, so the code needs to |