libcamera/jmondi/libcamera.git - Jacopo Mondi's clone of libcamera

Age	Commit message (Collapse)	Author
2020-01-07	v4l2: Use Object::invokeMethod() return value	Laurent Pinchart
	Now that Object::invokeMethod() supports returning a value, use it and drop the return value method argument. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-04	v4l2: Fix compilation of __open_2() and __openat_2() with gcc	Laurent Pinchart
	The __open_2() and __openat_2() functions are defined by glibc as taking 2 and 3 arguments respectively, with variadic arguments for the file mode as open() and openat() do. The V4L2 compatibility layer defines them as aliases for open() and openat(), which results in compilation failures with gcc: ../../src/v4l2/v4l2_compat.cpp: In function ‘int __openat_2(int, const char, int)’: ../../src/v4l2/v4l2_compat.cpp:58:14: error: invalid conversion from ‘int’ to ‘const char’ [-fpermissive] 58 \| return open(dirfd, path, oflag); \| ^~~~~ \| \| \| int ../../src/v4l2/v4l2_compat.cpp:31:39: note: initializing argument 1 of ‘int open(const char, int, ...)’ 31 \| LIBCAMERA_PUBLIC int open(const char path, int oflag, ...) \| ~~~~~~~~~~~~^~~~ ../../src/v4l2/v4l2_compat.cpp:58:21: error: invalid conversion from ‘const char’ to ‘int’ [-fpermissive] 58 \| return open(dirfd, path, oflag); \| ^~~~ \| \| \| const char ../../src/v4l2/v4l2_compat.cpp:31:49: note: initializing argument 2 of ‘int open(const char, int, ...)’ 31 \| LIBCAMERA_PUBLIC int open(const char path, int oflag, ...) \| Fix this by defining the two functions as wrappers around open() and openat() without variadic arguments. Fixes: 0ce8f2390b52 ("v4l2: v4l2_compat: Add V4L2 compatibility layer") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-03	v4l2: v4l2_compat: Add V4L2 compatibility layer	Paul Elder
	Add libcamera V4L2 compatibility layer. This initial implementation supports the minimal set of V4L2 operations, which allows getting, setting, and enumerating formats, and streaming frames from a video device. Some data about the wrapped V4L2 video device are hardcoded. Add a build option named 'v4l2' and adjust the build system to selectively compile the V4L2 compatibility layer. For now we match the V4L2 device node to a libcamera camera based on a devnum that a pipeline handler may optionally map to a libcamera camera. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>