Documentation/ABI/testing/sysfs-class-backlight-driver-lm3533

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-class-backlight-driver-lm3533

File Facts

System: Linux kernel
Corpus path: Documentation/ABI/testing/sysfs-class-backlight-driver-lm3533
Extension: [no extension]
Size: 1477 bytes
Lines: 55
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/backlight/<backlight>/als_channel
Date:		May 2012
KernelVersion:	3.5
Contact:	Johan Hovold <jhovold@gmail.com>
Description:
		Get the ALS output channel used as input in
		ALS-current-control mode (0, 1), where:

		==  ==========================
		0   out_current0 (backlight 0)
		1   out_current1 (backlight 1)
		==  ==========================

What:		/sys/class/backlight/<backlight>/als_en
Date:		May 2012
KernelVersion:	3.5
Contact:	Johan Hovold <jhovold@gmail.com>
Description:
		Enable ALS-current-control mode (0, 1).

What:		/sys/class/backlight/<backlight>/id
Date:		April 2012
KernelVersion:	3.5
Contact:	Johan Hovold <jhovold@gmail.com>
Description:
		Get the id of this backlight (0, 1).

What:		/sys/class/backlight/<backlight>/linear
Date:		April 2012
KernelVersion:	3.5
Contact:	Johan Hovold <jhovold@gmail.com>
Description:
		Set the brightness-mapping mode (0, 1), where:

		==  ================
		0   exponential mode
		1   linear mode
		==  ================

What:		/sys/class/backlight/<backlight>/pwm
Date:		April 2012
KernelVersion:	3.5
Contact:	Johan Hovold <jhovold@gmail.com>
Description:
		Set the PWM-input control mask (5 bits), where:

		=====   ===========================
		bit 5   PWM-input enabled in Zone 4
		bit 4   PWM-input enabled in Zone 3
		bit 3   PWM-input enabled in Zone 2
		bit 2   PWM-input enabled in Zone 1
		bit 1   PWM-input enabled in Zone 0
		bit 0   PWM-input enabled
		=====   ===========================

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.