diff options
Diffstat (limited to 'v4l2-apps/lib/libv4l/libv4l2/libv4l2.c')
| -rw-r--r-- | v4l2-apps/lib/libv4l/libv4l2/libv4l2.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/v4l2-apps/lib/libv4l/libv4l2/libv4l2.c b/v4l2-apps/lib/libv4l/libv4l2/libv4l2.c index 95c581079..930ef5f1e 100644 --- a/v4l2-apps/lib/libv4l/libv4l2/libv4l2.c +++ b/v4l2-apps/lib/libv4l/libv4l2/libv4l2.c @@ -550,6 +550,9 @@ int v4l2_ioctl (int fd, unsigned long int request, ...) /* Is this a capture request and do we need to take the stream lock? */ switch (request) { + case VIDIOC_QUERYCAP: + is_capture_request = 1; + break; case VIDIOC_ENUM_FMT: if (((struct v4l2_fmtdesc *)arg)->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) is_capture_request = 1; @@ -605,6 +608,17 @@ int v4l2_ioctl (int fd, unsigned long int request, ...) switch (request) { + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *cap = arg; + + result = syscall(SYS_ioctl, devices[index].fd, VIDIOC_QUERYCAP, cap); + if (result == 0) + /* We always support read() as we fake it using mmap mode */ + cap->capabilities |= V4L2_CAP_READWRITE; + } + break; + case VIDIOC_ENUM_FMT: result = v4lconvert_enum_fmt(devices[index].convert, arg); break; @@ -727,7 +741,7 @@ int v4l2_ioctl (int fd, unsigned long int request, ...) result = syscall(SYS_ioctl, devices[index].fd, VIDIOC_REQBUFS, req); if (result < 0) break; - result = 0; // some drivers return the number of buffers on success + result = 0; /* some drivers return the number of buffers on success */ /* If we got more frames then we can handle lie to the app */ if (req->count > V4L2_MAX_NO_FRAMES) |