drivers/media/pci/mgb4/mgb4_vout.h

Source file repositories/reference/linux-study-clean/drivers/media/pci/mgb4/mgb4_vout.h

File Facts

System
Linux kernel
Corpus path
drivers/media/pci/mgb4/mgb4_vout.h
Extension
.h
Size
1286 bytes
Lines
66
Domain
Driver Families
Bucket
drivers/media
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct mgb4_vout_regs {
	u32 address;
	u32 config;
	u32 status;
	u32 resolution;
	u32 frame_limit;
	u32 hsync;
	u32 vsync;
	u32 padding;
	u32 timer;
};

struct mgb4_vout_config {
	int id;
	int dma_channel;
	int irq;
	struct mgb4_vout_regs regs;
};

struct mgb4_vout_dev {
	struct mgb4_dev *mgbdev;
	struct v4l2_device v4l2dev;
	struct video_device vdev;
	struct vb2_queue queue;
	struct mutex lock; /* vdev lock */

	spinlock_t qlock; /* buffer queue lock */
	struct list_head buf_list;
	struct work_struct dma_work;

	u32 width;
	u32 height;
	u32 freq;
	u32 padding;

	struct mgb4_i2c_client ser;

	const struct mgb4_vout_config *config;

#ifdef CONFIG_DEBUG_FS
	struct debugfs_regset32 regset;
	struct debugfs_reg32 regs[sizeof(struct mgb4_vout_regs) / 4];
#endif
};

struct mgb4_vout_dev *mgb4_vout_create(struct mgb4_dev *mgbdev, int id);
void mgb4_vout_free(struct mgb4_vout_dev *voutdev);

#endif

Annotation

Implementation Notes