Documentation/ABI/testing/sysfs-class-power-rt9756
Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-class-power-rt9756
File Facts
- System
- Linux kernel
- Corpus path
Documentation/ABI/testing/sysfs-class-power-rt9756- Extension
[no extension]- Size
- 971 bytes
- Lines
- 31
- Domain
- Support Tooling And Documentation
- Bucket
- Documentation
- Inferred role
- Support Tooling And Documentation: Documentation
- Status
- atlas-only
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
What: /sys/class/power_supply/rt9756-*/watchdog_timer
Date: Dec 2025
KernelVersion: 6.19
Contact: ChiYuan Huang <cy_huang@richtek.com>
Description:
This entry shows and sets the watchdog timer when rt9756 charger
operates in charging mode. When the timer expires, the device
will disable the charging. To prevent the timer expires, any
host communication can make the timer restarted.
Access: Read, Write
Valid values:
- 500, 1000, 5000, 30000, 40000, 80000, 128000 or 255000 (milliseconds),
- 0: disabled
What: /sys/class/power_supply/rt9756-*/operation_mode
Date: Dec 2025
KernelVersion: 6.19
Contact: ChiYuan Huang <cy_huang@richtek.com>
Description:
This entry shows and set the operation mode when rt9756 charger
operates in charging phase. If 'bypass' mode is used, internal
path will connect vbus directly to vbat. Else, default 'div2'
mode for the switch-cap charging.
Access: Read, Write
Valid values:
- 'bypass' or 'div2'Annotation
- Atlas domain: Support Tooling And Documentation / Documentation.
- Implementation status: atlas-only.
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.