drivers/media/pci/ttpci/budget.c

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/ttpci/budget.c

Extension

.c

Size

25321 bytes

Lines

897

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
• ves1x93.h
• ves1820.h
• l64781.h
• tda8083.h
• s5h1420.h
• tda10086.h
• tda826x.h
• lnbp21.h
• bsru6.h
• bsbe1.h
• tdhd1.h
• stv6110x.h
• stv090x.h
• isl6423.h
• lnbh24.h

Detected Declarations

• function Set22K
• function DiseqcSendBit
• function DiseqcSendByte
• function SendDiSEqCMsg
• function SetVoltage_Activy
• function siemens_budget_set_voltage
• function budget_set_tone
• function budget_diseqc_send_master_cmd
• function budget_diseqc_send_burst
• function alps_bsrv2_tuner_set_params
• function alps_tdbe2_tuner_set_params
• function grundig_29504_401_tuner_set_params
• function grundig_29504_451_tuner_set_params
• function s5h1420_tuner_set_params
• function alps_tdhd1_204_request_firmware
• function i2c_readreg
• function read_pwm
• function frontend_init
• function budget_attach
• function budget_detach
• function budget_init
• function budget_exit
• module init budget_init

Annotated Snippet

module_init(budget_init);
module_exit(budget_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 cards by Siemens, Technotrend, Hauppauge");

Annotation

• Immediate include surface: `budget.h`, `stv0299.h`, `ves1x93.h`, `ves1820.h`, `l64781.h`, `tda8083.h`, `s5h1420.h`, `tda10086.h`.
• Detected declarations: `function Set22K`, `function DiseqcSendBit`, `function DiseqcSendByte`, `function SendDiSEqCMsg`, `function SetVoltage_Activy`, `function siemens_budget_set_voltage`, `function budget_set_tone`, `function budget_diseqc_send_master_cmd`, `function budget_diseqc_send_burst`, `function alps_bsrv2_tuner_set_params`.
• 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.