drivers/gpio/gpio-amd8111.c
Source file repositories/reference/linux-study-clean/drivers/gpio/gpio-amd8111.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpio/gpio-amd8111.c- Extension
.c- Size
- 6948 bytes
- Lines
- 253
- 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.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/ioport.hlinux/module.hlinux/kernel.hlinux/gpio/driver.hlinux/pci.hlinux/spinlock.h
Detected Declarations
struct amd_gpiofunction amd_gpio_requestfunction amd_gpio_freefunction amd_gpio_setfunction amd_gpio_getfunction amd_gpio_diroutfunction amd_gpio_dirinfunction amd_gpio_initfunction amd_gpio_exitmodule init amd_gpio_init
Annotated Snippet
module_init(amd_gpio_init);
module_exit(amd_gpio_exit);
MODULE_AUTHOR("The Linux Kernel team");
MODULE_DESCRIPTION("GPIO driver for AMD chipsets");
MODULE_LICENSE("GPL");Annotation
- Immediate include surface: `linux/ioport.h`, `linux/module.h`, `linux/kernel.h`, `linux/gpio/driver.h`, `linux/pci.h`, `linux/spinlock.h`.
- Detected declarations: `struct amd_gpio`, `function amd_gpio_request`, `function amd_gpio_free`, `function amd_gpio_set`, `function amd_gpio_get`, `function amd_gpio_dirout`, `function amd_gpio_dirin`, `function amd_gpio_init`, `function amd_gpio_exit`, `module init amd_gpio_init`.
- Atlas domain: Driver Families / drivers/gpio.
- 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.