drivers/gpio/gpio-stp-xway.c
Source file repositories/reference/linux-study-clean/drivers/gpio/gpio-stp-xway.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpio/gpio-stp-xway.c- Extension
.c- Size
- 9789 bytes
- Lines
- 336
- Domain
- Driver Families
- Bucket
- drivers/gpio
- 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/platform_device.hlinux/slab.hlinux/init.hlinux/module.hlinux/types.hlinux/of.hlinux/mutex.hlinux/gpio/driver.hlinux/io.hlinux/clk.hlinux/err.h
Detected Declarations
struct xway_stpfunction xway_stp_getfunction xway_stp_setfunction xway_stp_dir_outfunction xway_stp_requestfunction xway_stp_hw_initfunction xway_stp_probefunction of_machine_is_compatiblefunction xway_stp_initmodule init xway_stp_init
Annotated Snippet
subsys_initcall(xway_stp_init);Annotation
- Immediate include surface: `linux/platform_device.h`, `linux/slab.h`, `linux/init.h`, `linux/module.h`, `linux/types.h`, `linux/of.h`, `linux/mutex.h`, `linux/gpio/driver.h`.
- Detected declarations: `struct xway_stp`, `function xway_stp_get`, `function xway_stp_set`, `function xway_stp_dir_out`, `function xway_stp_request`, `function xway_stp_hw_init`, `function xway_stp_probe`, `function of_machine_is_compatible`, `function xway_stp_init`, `module init xway_stp_init`.
- Atlas domain: Driver Families / drivers/gpio.
- 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.