drivers/media/usb/dvb-usb/af9005.c

File Facts

System

Linux kernel

Corpus path

drivers/media/usb/dvb-usb/af9005.c

Extension

.c

Size

27887 bytes

Lines

1140

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

• af9005.h

Detected Declarations

• struct af9005_device_state
• function af9005_generic_read_write
• function af9005_read_ofdm_register
• function af9005_read_ofdm_registers
• function af9005_write_ofdm_register
• function af9005_write_ofdm_registers
• function af9005_read_register_bits
• function af9005_write_register_bits
• function af9005_usb_read_tuner_registers
• function af9005_usb_write_tuner_registers
• function af9005_write_tuner_registers
• function af9005_read_tuner_registers
• function af9005_i2c_write
• function af9005_i2c_read
• function af9005_i2c_xfer
• function af9005_i2c_func
• function af9005_send_command
• function af9005_read_eeprom
• function af9005_boot_packet
• function af9005_download_firmware
• function af9005_led_control
• function af9005_frontend_attach
• function af9005_rc_query
• function af9005_power_ctrl
• function af9005_pid_filter_control
• function af9005_pid_filter
• function af9005_identify_state
• function af9005_usb_probe
• function af9005_usb_module_init
• function af9005_usb_module_exit
• module init af9005_usb_module_init

Annotated Snippet

module_init(af9005_usb_module_init);
module_exit(af9005_usb_module_exit);

MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>");
MODULE_DESCRIPTION("Driver for Afatech 9005 DVB-T USB1.1 stick");
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `af9005.h`.
• Detected declarations: `struct af9005_device_state`, `function af9005_generic_read_write`, `function af9005_read_ofdm_register`, `function af9005_read_ofdm_registers`, `function af9005_write_ofdm_register`, `function af9005_write_ofdm_registers`, `function af9005_read_register_bits`, `function af9005_write_register_bits`, `function af9005_usb_read_tuner_registers`, `function af9005_usb_write_tuner_registers`.
• 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.