drivers/media/usb/em28xx/em28xx-dvb.c

File Facts

System

Linux kernel

Corpus path

drivers/media/usb/em28xx/em28xx-dvb.c

Extension

.c

Size

63877 bytes

Lines

2392

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

• em28xx.h
• linux/kernel.h
• linux/slab.h
• linux/usb.h
• media/v4l2-common.h
• media/dvb_demux.h
• media/dvb_net.h
• media/dmxdev.h
• media/tuner.h
• tuner-simple.h
• linux/gpio.h
• lgdt330x.h
• lgdt3305.h
• lgdt3306a.h
• zl10353.h
• s5h1409.h
• mt2060.h
• mt352.h
• mt352_priv.h
• tda1002x.h
• drx39xyj/drx39xxj.h
• tda18271.h
• s921.h
• drxd.h
• cxd2820r.h
• tda18271c2dd.h
• drxk.h
• tda10071.h
• tda18212.h
• a8293.h
• qt1010.h
• mb86a20s.h

Detected Declarations

• struct em28xx_dvb
• function print_err_status
• function em28xx_dvb_urb_data_copy
• function em28xx_start_streaming
• function em28xx_stop_streaming
• function em28xx_start_feed
• function em28xx_stop_feed
• function em28xx_dvb_bus_ctrl
• function em28xx_set_analog_freq
• function drxk_gate_ctrl
• function hauppauge_hvr930c_init
• function terratec_h5_init
• function terratec_htc_stick_init
• function terratec_htc_usb_xs_init
• function pctv_520e_init
• function em28xx_pctv_290e_set_lna
• function em28xx_pctv_292e_set_lna
• function em28xx_mt352_terratec_xs_init
• function px_bcud_init
• function em28xx_attach_xc3028
• function em28xx_register_dvb
• function em28xx_unregister_dvb
• function em28174_dvb_init_pctv_460e
• function em28178_dvb_init_pctv_461e
• function em28178_dvb_init_pctv_461e_vX
• function em28178_dvb_init_pctv_292e
• function em28178_dvb_init_terratec_t2_stick_hd
• function em28178_dvb_init_plex_px_bcud
• function em28174_dvb_init_hauppauge_wintv_dualhd_dvb
• function em28174_dvb_init_hauppauge_wintv_dualhd_01595
• function em2874_dvb_init_hauppauge_usb_quadhd
• function em2828X_dvb_init_hauppauge_wintv_935_v2
• function em2828X_dvb_init_hauppauge_wintv_955_v2
• function em2828X_dvb_init_hauppauge_wintv_975_v2
• function em28xx_dvb_init
• function prevent_sleep
• function em28xx_dvb_fini
• function em28xx_dvb_suspend
• function em28xx_dvb_resume
• function em28xx_dvb_register
• function em28xx_dvb_unregister
• module init em28xx_dvb_register

Annotated Snippet

module_init(em28xx_dvb_register);
module_exit(em28xx_dvb_unregister);

Annotation

• Immediate include surface: `em28xx.h`, `linux/kernel.h`, `linux/slab.h`, `linux/usb.h`, `media/v4l2-common.h`, `media/dvb_demux.h`, `media/dvb_net.h`, `media/dmxdev.h`.
• Detected declarations: `struct em28xx_dvb`, `function print_err_status`, `function em28xx_dvb_urb_data_copy`, `function em28xx_start_streaming`, `function em28xx_stop_streaming`, `function em28xx_start_feed`, `function em28xx_stop_feed`, `function em28xx_dvb_bus_ctrl`, `function em28xx_set_analog_freq`, `function drxk_gate_ctrl`.
• 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.