Add VIDIOC_REMOVE_BUFS ioctl and it associated structure.
Define V4L2_BUF_CAP_SUPPORTS_REMOVE_BUFS to signal that queue support
feature.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
---
include/linux/videodev2.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 397a99e3..a4eb1afd 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -992,6 +992,7 @@ struct v4l2_requestbuffers {
#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
#define V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS (1 << 7)
+#define V4L2_BUF_CAP_SUPPORTS_REMOVE_BUFS (1 << 8)
/**
* struct v4l2_plane - plane info for multi-planar buffers
@@ -2564,6 +2565,20 @@ struct v4l2_create_buffers {
__u32 reserved[5];
};
+/**
+ * struct v4l2_remove_buffers - VIDIOC_REMOVE_BUFS argument
+ * @index: the first buffer to be removed
+ * @count: number of buffers to removed
+ * @type: enum v4l2_buf_type
+ * @reserved: future extensions
+ */
+struct v4l2_remove_buffers {
+ __u32 index;
+ __u32 count;
+ __u32 type;
+ __u32 reserved[13];
+};
+
/*
* I O C T L C O D E S F O R V I D E O D E V I C E S
*
@@ -2663,6 +2678,7 @@ struct v4l2_create_buffers {
#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info)
#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl)
+#define VIDIOC_REMOVE_BUFS _IOWR('V', 104, struct v4l2_remove_buffers)
/* Reminder: when adding new ioctls please add support for them to
drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
--
2.40.1
