drivers/regulator/wm831x-isink.c
Source file repositories/reference/linux-study-clean/drivers/regulator/wm831x-isink.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/regulator/wm831x-isink.c- Extension
.c- Size
- 5336 bytes
- Lines
- 218
- Domain
- Driver Families
- Bucket
- drivers/regulator
- 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.
- Touches IRQ or DMA behavior; this matters for the representative real-device path.
- 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.hlinux/moduleparam.hlinux/init.hlinux/bitops.hlinux/err.hlinux/i2c.hlinux/platform_device.hlinux/regulator/driver.hlinux/slab.hlinux/mfd/wm831x/core.hlinux/mfd/wm831x/regulator.hlinux/mfd/wm831x/pdata.h
Detected Declarations
struct wm831x_isinkfunction wm831x_isink_enablefunction wm831x_isink_disablefunction wm831x_isink_is_enabledfunction wm831x_isink_irqfunction wm831x_isink_probefunction wm831x_isink_initfunction wm831x_isink_exitmodule init wm831x_isink_init
Annotated Snippet
subsys_initcall(wm831x_isink_init);
static void __exit wm831x_isink_exit(void)
{
platform_driver_unregister(&wm831x_isink_driver);
}
module_exit(wm831x_isink_exit);
/* Module information */
MODULE_AUTHOR("Mark Brown");
MODULE_DESCRIPTION("WM831x current sink driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:wm831x-isink");Annotation
- Immediate include surface: `linux/module.h`, `linux/moduleparam.h`, `linux/init.h`, `linux/bitops.h`, `linux/err.h`, `linux/i2c.h`, `linux/platform_device.h`, `linux/regulator/driver.h`.
- Detected declarations: `struct wm831x_isink`, `function wm831x_isink_enable`, `function wm831x_isink_disable`, `function wm831x_isink_is_enabled`, `function wm831x_isink_irq`, `function wm831x_isink_probe`, `function wm831x_isink_init`, `function wm831x_isink_exit`, `module init wm831x_isink_init`.
- Atlas domain: Driver Families / drivers/regulator.
- Implementation status: integration implementation candidate.
- 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.