drivers/tty/serial/dz.c
Source file repositories/reference/linux-study-clean/drivers/tty/serial/dz.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/tty/serial/dz.c- Extension
.c- Size
- 23450 bytes
- Lines
- 952
- Domain
- Driver Families
- Bucket
- drivers/tty
- 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.
- Touches IRQ or DMA behavior; this matters for the representative real-device path.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/bitops.hlinux/compiler.hlinux/console.hlinux/delay.hlinux/errno.hlinux/init.hlinux/interrupt.hlinux/ioport.hlinux/kernel.hlinux/major.hlinux/module.hlinux/platform_device.hlinux/serial.hlinux/serial_core.hlinux/sysrq.hlinux/tty.hlinux/tty_flip.hlinux/atomic.hlinux/io.hdz.h
Detected Declarations
struct dz_portstruct dz_muxfunction dz_infunction dz_outfunction rs_stopfunction dz_start_txfunction dz_stop_rxfunction dz_interruptfunction transmit_charfunction check_modem_statusfunction dz_interruptfunction dz_get_mctrlfunction dz_set_mctrlfunction startupfunction dz_shutdownfunction dz_tx_emptyfunction dz_break_ctlfunction dz_encode_baud_ratefunction dz_resetfunction dz_set_termiosfunction dz_release_portfunction dz_map_portfunction dz_request_portfunction dz_config_portfunction serial_structfunction dz_probefunction dz_removefunction dz_console_putcharfunction dz_console_printfunction dz_console_setupfunction dz_initfunction dz_exitmodule init dz_init
Annotated Snippet
module_init(dz_init);
module_exit(dz_exit);
Annotation
- Immediate include surface: `linux/bitops.h`, `linux/compiler.h`, `linux/console.h`, `linux/delay.h`, `linux/errno.h`, `linux/init.h`, `linux/interrupt.h`, `linux/ioport.h`.
- Detected declarations: `struct dz_port`, `struct dz_mux`, `function dz_in`, `function dz_out`, `function rs_stop`, `function dz_start_tx`, `function dz_stop_rx`, `function dz_interrupt`, `function transmit_char`, `function check_modem_status`.
- Atlas domain: Driver Families / drivers/tty.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
- IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.
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.