drivers/media/pci/bt8xx/dvb-bt8xx.c

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/bt8xx/dvb-bt8xx.c

Extension

.c

Size

27205 bytes

Lines

969

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.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/bitops.h
• linux/module.h
• linux/init.h
• linux/kernel.h
• linux/device.h
• linux/delay.h
• linux/slab.h
• linux/i2c.h
• media/dmxdev.h
• media/dvbdev.h
• media/dvb_demux.h
• media/dvb_frontend.h
• dvb-bt8xx.h
• bt878.h

Detected Declarations

• function dvb_bt8xx_work
• function dvb_bt8xx_start_feed
• function dvb_bt8xx_stop_feed
• function is_pci_slot_eq
• function thomson_dtt7579_demod_init
• function thomson_dtt7579_tuner_calc_regs
• function cx24108_tuner_set_params
• function pinnsat_tuner_init
• function pinnsat_tuner_sleep
• function microtune_mt7202dtf_tuner_set_params
• function microtune_mt7202dtf_request_firmware
• function advbt771_samsung_tdtc9251dh0_demod_init
• function advbt771_samsung_tdtc9251dh0_tuner_calc_regs
• function or51211_request_firmware
• function or51211_setmode
• function or51211_reset
• function or51211_sleep
• function vp3021_alps_tded4_tuner_set_params
• function digitv_alps_tded4_demod_init
• function digitv_alps_tded4_tuner_calc_regs
• function digitv_alps_tded4_reset
• function lgdt330x_reset
• function frontend_init
• function dvb_bt8xx_load_card
• function dvb_bt8xx_probe
• function dvb_bt8xx_remove
• function dvb_bt8xx_init
• function dvb_bt8xx_exit
• module init dvb_bt8xx_init

Annotated Snippet

module_init(dvb_bt8xx_init);
module_exit(dvb_bt8xx_exit);

MODULE_DESCRIPTION("Bt8xx based DVB adapter driver");
MODULE_AUTHOR("Florian Schirmer <jolt@tuxbox.org>");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/bitops.h`, `linux/module.h`, `linux/init.h`, `linux/kernel.h`, `linux/device.h`, `linux/delay.h`, `linux/slab.h`, `linux/i2c.h`.
• Detected declarations: `function dvb_bt8xx_work`, `function dvb_bt8xx_start_feed`, `function dvb_bt8xx_stop_feed`, `function is_pci_slot_eq`, `function thomson_dtt7579_demod_init`, `function thomson_dtt7579_tuner_calc_regs`, `function cx24108_tuner_set_params`, `function pinnsat_tuner_init`, `function pinnsat_tuner_sleep`, `function microtune_mt7202dtf_tuner_set_params`.
• 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.