drivers/media/pci/cx88/cx88-blackbird.c

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/cx88/cx88-blackbird.c

Extension

.c

Size

34281 bytes

Lines

1252

Domain

Driver Families

Bucket

drivers/media

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.

• 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• cx88.h
• linux/module.h
• linux/init.h
• linux/slab.h
• linux/fs.h
• linux/delay.h
• linux/device.h
• linux/firmware.h
• media/v4l2-common.h
• media/v4l2-ioctl.h
• media/v4l2-event.h
• media/drv-intf/cx2341x.h

Detected Declarations

• enum blackbird_capture_type
• enum blackbird_capture_bits
• enum blackbird_capture_end
• enum blackbird_framerate
• enum blackbird_stream_port
• enum blackbird_data_xfer_status
• enum blackbird_picture_mask
• enum blackbird_vbi_mode_bits
• enum blackbird_vbi_insertion_bits
• enum blackbird_dma_unit
• enum blackbird_dma_transfer_status_bits
• enum blackbird_pause
• enum blackbird_copyright
• enum blackbird_notification_type
• enum blackbird_notification_status
• enum blackbird_notification_mailbox
• enum blackbird_field1_lines
• enum blackbird_field2_lines
• enum blackbird_custom_data_type
• enum blackbird_mute
• enum blackbird_mute_video_mask
• enum blackbird_mute_video_shift
• function host_setup
• function wait_ready_gpio0_bit1
• function memory_write
• function memory_read
• function register_write
• function register_read
• function blackbird_mbox_func
• function blackbird_api_cmd
• function blackbird_find_mailbox
• function blackbird_load_firmware
• function blackbird_codec_settings
• function blackbird_initialize_codec
• function blackbird_start_codec
• function blackbird_stop_codec
• function queue_setup
• function buffer_prepare
• function buffer_finish
• function buffer_queue
• function start_streaming
• function stop_streaming
• function vidioc_querycap
• function vidioc_enum_fmt_vid_cap
• function vidioc_g_fmt_vid_cap
• function vidioc_try_fmt_vid_cap
• function vidioc_s_fmt_vid_cap
• function vidioc_s_frequency

Annotated Snippet

module_init(blackbird_init);
module_exit(blackbird_fini);

Annotation

• Immediate include surface: `cx88.h`, `linux/module.h`, `linux/init.h`, `linux/slab.h`, `linux/fs.h`, `linux/delay.h`, `linux/device.h`, `linux/firmware.h`.
• Detected declarations: `enum blackbird_capture_type`, `enum blackbird_capture_bits`, `enum blackbird_capture_end`, `enum blackbird_framerate`, `enum blackbird_stream_port`, `enum blackbird_data_xfer_status`, `enum blackbird_picture_mask`, `enum blackbird_vbi_mode_bits`, `enum blackbird_vbi_insertion_bits`, `enum blackbird_dma_unit`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.