drivers/bluetooth/hci_ldisc.c

File Facts

System

Linux kernel

Corpus path

drivers/bluetooth/hci_ldisc.c

Extension

.c

Size

21578 bytes

Lines

972

Domain

Driver Families

Bucket

drivers/bluetooth

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

• linux/module.h
• linux/kernel.h
• linux/init.h
• linux/types.h
• linux/fcntl.h
• linux/interrupt.h
• linux/ptrace.h
• linux/poll.h
• linux/slab.h
• linux/tty.h
• linux/errno.h
• linux/string.h
• linux/signal.h
• linux/ioctl.h
• linux/skbuff.h
• linux/firmware.h
• linux/serdev.h
• net/bluetooth/bluetooth.h
• net/bluetooth/hci_core.h
• btintel.h
• btbcm.h
• hci_uart.h

Detected Declarations

• function hci_uart_register_proto
• function hci_uart_unregister_proto
• function hci_uart_tx_complete
• function hci_uart_tx_wakeup
• function hci_uart_write_work
• function hci_uart_init_work
• function hci_uart_init_ready
• function hci_uart_wait_until_sent
• function hci_uart_flush
• function hci_uart_open
• function hci_uart_close
• function hci_uart_send_frame
• function hci_uart_has_flow_control
• function hci_uart_set_flow_control
• function hci_uart_set_speeds
• function hci_uart_set_baudrate
• function hci_uart_setup
• function hci_uart_tty_open
• function hci_uart_tty_close
• function hci_uart_tty_wakeup
• function hci_uart_tty_receive
• function hci_uart_register_dev
• function hci_uart_set_proto
• function hci_uart_set_flags
• function call
• function hci_uart_tty_read
• function hci_uart_tty_write
• function hci_uart_init
• function hci_uart_exit
• module init hci_uart_init
• export hci_uart_tx_wakeup

Annotated Snippet

module_init(hci_uart_init);
module_exit(hci_uart_exit);

MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth HCI UART driver ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_ALIAS_LDISC(N_HCI);

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/init.h`, `linux/types.h`, `linux/fcntl.h`, `linux/interrupt.h`, `linux/ptrace.h`, `linux/poll.h`.
• Detected declarations: `function hci_uart_register_proto`, `function hci_uart_unregister_proto`, `function hci_uart_tx_complete`, `function hci_uart_tx_wakeup`, `function hci_uart_write_work`, `function hci_uart_init_work`, `function hci_uart_init_ready`, `function hci_uart_wait_until_sent`, `function hci_uart_flush`, `function hci_uart_open`.
• Atlas domain: Driver Families / drivers/bluetooth.
• 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.