drivers/media/pci/ttpci/budget-av.c

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/ttpci/budget-av.c

Extension

.c

Size

44467 bytes

Lines

1626

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.
• 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

• budget.h
• stv0299.h
• stb0899_drv.h
• stb0899_reg.h
• stb0899_cfg.h
• tda8261.h
• tda8261_cfg.h
• tda1002x.h
• tda1004x.h
• tua6100.h
• dvb-pll.h
• media/drv-intf/saa7146_vv.h
• linux/module.h
• linux/etherdevice.h
• linux/errno.h
• linux/slab.h
• linux/interrupt.h
• linux/input.h
• linux/spinlock.h
• linux/workqueue.h
• media/dvb_ca_en50221.h

Detected Declarations

• struct budget_av
• function i2c_readreg
• function i2c_readregs
• function i2c_writereg
• function ciintf_read_attribute_mem
• function ciintf_write_attribute_mem
• function ciintf_read_cam_control
• function ciintf_write_cam_control
• function ciintf_slot_reset
• function ciintf_slot_shutdown
• function ciintf_slot_ts_enable
• function ciintf_poll_slot_status
• function interface
• function ciintf_init
• function ciintf_deinit
• function saa7113_init
• function saa7113_setinput
• function philips_su1278_ty_ci_set_symbol_rate
• function philips_su1278_ty_ci_tuner_set_params
• function philips_cu1216_tuner_set_params
• function philips_tu1216_tuner_init
• function philips_tu1216_tuner_set_params
• function philips_tu1216_request_firmware
• function philips_sd1878_ci_set_symbol_rate
• function read_pwm
• function frontend_init
• function budget_av_irq
• function budget_av_detach
• function vidioc_enum_input
• function vidioc_g_input
• function vidioc_s_input
• function budget_av_attach
• function budget_av_init
• function budget_av_exit
• module init budget_av_init

Annotated Snippet

module_init(budget_av_init);
module_exit(budget_av_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ralph Metzler, Marcus Metzler, Michael Hunold, others");
MODULE_DESCRIPTION("driver for the SAA7146 based so-called budget PCI DVB w/ analog input and CI-module (e.g. the KNC cards)");

Annotation

• Immediate include surface: `budget.h`, `stv0299.h`, `stb0899_drv.h`, `stb0899_reg.h`, `stb0899_cfg.h`, `tda8261.h`, `tda8261_cfg.h`, `tda1002x.h`.
• Detected declarations: `struct budget_av`, `function i2c_readreg`, `function i2c_readregs`, `function i2c_writereg`, `function ciintf_read_attribute_mem`, `function ciintf_write_attribute_mem`, `function ciintf_read_cam_control`, `function ciintf_write_cam_control`, `function ciintf_slot_reset`, `function ciintf_slot_shutdown`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: integration implementation candidate.

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.