vb2_reqbufs identifier - Linux source code next-20260811

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FIXME
- FIXME
  - next-20260811

Documented in 1 files:

include/media/videobuf2-v4l2.h, line 90

Defined in 1 files as a prototype:

include/media/videobuf2-v4l2.h, line 98 (as a prototype)

Defined in 1 files as a function:

drivers/media/common/videobuf2/videobuf2-v4l2.c, line 694 (as a function)

Referenced in 7 files:

Smatch caller information:

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c reqbufs_capture() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	0
PARAM_VALUE	1	req->memory	1
PARAM_VALUE	1	req->type	9
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	0[u]
USER_DATA	1	req->flags	0-255[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c reqbufs_capture() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	1-u32max
PARAM_VALUE	1	req->memory	1
PARAM_VALUE	1	req->type	9
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	1-u32max[u]
USER_DATA	1	req->flags	0-255[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c reqbufs_capture() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	0	q->bufs	0
PARAM_VALUE	0	q->fileio	0
PARAM_VALUE	0	q->mmap_lock.osq.tail.counter	0-s32max
PARAM_VALUE	0	q->owned_by_drv_count.counter	0
PARAM_VALUE	0	q->streaming	0
PARAM_VALUE	0	q->type	1-2,4-14
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->count	0
PARAM_VALUE	1	req->flags	0-1
PARAM_VALUE	1	req->memory	1
PARAM_VALUE	1	req->type	9
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
NOCHECK_CALL
USER_DATA	0	q->non_coherent_mem	0-1[c]
USER_DATA	1	req->flags	0-1[c][u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c reqbufs_output() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	0
PARAM_VALUE	1	req->memory	1
PARAM_VALUE	1	req->type	10
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	0[u]
USER_DATA	1	req->flags	0-255[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c reqbufs_output() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	1-u32max
PARAM_VALUE	1	req->memory	1
PARAM_VALUE	1	req->type	10
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	1-u32max[u]
USER_DATA	1	req->flags	0-255[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c reqbufs_output() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	0	q->bufs	0
PARAM_VALUE	0	q->fileio	0
PARAM_VALUE	0	q->mmap_lock.osq.tail.counter	0-s32max
PARAM_VALUE	0	q->owned_by_drv_count.counter	0
PARAM_VALUE	0	q->streaming	0
PARAM_VALUE	0	q->type	1-2,4-14
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->count	0
PARAM_VALUE	1	req->flags	0-1
PARAM_VALUE	1	req->memory	1
PARAM_VALUE	1	req->type	10
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
NOCHECK_CALL
USER_DATA	0	q->non_coherent_mem	0-1[c]
USER_DATA	1	req->flags	0-1[c][u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s3c-camif/camif-capture.c s3c_camif_reqbufs() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	0,3-u32max
PARAM_VALUE	1	req->type	1-2,4-14
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	0,3-u32max[u]
USER_DATA	1	req->flags	0-255[u]
USER_DATA	1	req->memory	0-u32max[u]
USER_DATA	1	req->type	1-2,4-14[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s3c-camif/camif-capture.c s3c_camif_reqbufs() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	0	q->bufs	0
PARAM_VALUE	0	q->fileio	0
PARAM_VALUE	0	q->mmap_lock.osq.tail.counter	0-s32max
PARAM_VALUE	0	q->owned_by_drv_count.counter	0
PARAM_VALUE	0	q->streaming	0
PARAM_VALUE	0	q->type	1-2,4-14
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->count	0
PARAM_VALUE	1	req->flags	0-1
PARAM_VALUE	1	req->memory	1-2,4
PARAM_VALUE	1	req->type	1-2,4-14
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
NOCHECK_CALL
USER_DATA	0	q->non_coherent_mem	0-1[c]
USER_DATA	1	req->flags	0-1[c][u]
USER_DATA	1	req->memory	1-2,4[u]
USER_DATA	1	req->type	1-2,4-14[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/usb/gadget/function/uvc_queue.c uvcg_alloc_buffers() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	0	q->type	1-2,4-14
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->type	1-2,4-14
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
CAPPED_DATA	1	req->type	1
DATA_SOURCE	1	req	$1
USER_DATA	0	q->non_coherent_mem	0-1[c]
USER_DATA	1	req->count	0-u32max[u]
USER_DATA	1	req->flags	0-255[u]
USER_DATA	1	req->memory	0-u32max[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/v4l2-core/v4l2-mem2mem.c v4l2_m2m_reqbufs() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->type	1-2,4-14
BUF_SIZE	0	q	632
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	0	q	r v4l2_m2m_get_vq
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	0-u32max[u]
USER_DATA	1	req->flags	0-255[u]
USER_DATA	1	req->memory	0-u32max[u]
USER_DATA	1	req->type	1-2,4-14[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/ti/omap3isp/ispvideo.c isp_video_reqbufs() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->type	1-2,4-14
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	0-u32max[u]
USER_DATA	1	req->flags	0-255[u]
USER_DATA	1	req->memory	0-u32max[u]
USER_DATA	1	req->type	1-2,4-14[u]
USER_PTR	1	req
LOCK2		&video->queue_lock
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock
TYPE_LOCK		(struct isp_video)->queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c vidioc_reqbufs() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	0
PARAM_VALUE	1	req->memory	1-2,4
PARAM_VALUE	1	req->type	9
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	0[u]
USER_DATA	1	req->flags	0-255[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c vidioc_reqbufs() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	1-u32max
PARAM_VALUE	1	req->memory	1-2,4
PARAM_VALUE	1	req->type	9
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	1-u32max[u]
USER_DATA	1	req->flags	0-255[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c vidioc_reqbufs() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	0
PARAM_VALUE	1	req->memory	1-2,4
PARAM_VALUE	1	req->type	10
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	0[u]
USER_DATA	1	req->flags	0-255[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c vidioc_reqbufs() -> vb2_reqbufs()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	req	4096-ptr_max
PARAM_VALUE	1	req->capabilities	0,256
PARAM_VALUE	1	req->count	1-u32max
PARAM_VALUE	1	req->memory	1-2,4
PARAM_VALUE	1	req->type	10
BUF_SIZE	1	req	(-1),128-16383
BUF_SIZE	1	req	(-1),128-16383
CAPPED_DATA	1	req->count	1
DATA_SOURCE	1	req	$2
FUZZY_MAX	1	req->capabilities	256
BIT_INFO	1	req->capabilities	0x0,0x100
HARD_MAX	1	req->capabilities	256
USER_DATA	1	req->count	1-u32max[c][u]
USER_DATA	1	req->flags	0-255[u]
USER_PTR	1	req
HALF_LOCKED2		lock
HALF_LOCKED2		req_queue_lock