drivers/media/pci/cx25821/Kconfig

Source file repositories/reference/linux-study-clean/drivers/media/pci/cx25821/Kconfig

File Facts

System: Linux kernel
Corpus path: drivers/media/pci/cx25821/Kconfig
Extension: [no extension]
Size: 857 bytes
Lines: 30
Domain: Driver Families
Bucket: drivers/media
Inferred role: Driver Families: build/configuration rule
Status: atlas-only

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.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only
config VIDEO_CX25821
	tristate "Conexant cx25821 support"
	depends on VIDEO_DEV && PCI && I2C
	select I2C_ALGOBIT
	select VIDEOBUF2_DMA_SG
	help
	  This is a video4linux driver for Conexant 25821 based
	  TV cards.

	  To compile this driver as a module, choose M here: the
	  module will be called cx25821

config VIDEO_CX25821_ALSA
	tristate "Conexant 25821 DMA audio support"
	depends on VIDEO_CX25821 && SND
	select SND_PCM
	help
	  This is a video4linux driver for direct (DMA) audio on
	  Conexant 25821 based capture cards using ALSA.

	  It only works with boards with function 01 enabled.
	  To check if your board supports, use lspci -n.
	  If supported, you should see 14f1:8801 or 14f1:8811
	  PCI device.

	  To compile this driver as a module, choose M here: the
	  module will be called cx25821-alsa.

Annotation

Atlas domain: Driver Families / drivers/media.
Implementation status: atlas-only.

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.