Documentation/ABI/testing/sysfs-bus-soundwire-slave

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-bus-soundwire-slave

File Facts

System
Linux kernel
Corpus path
Documentation/ABI/testing/sysfs-bus-soundwire-slave
Extension
[no extension]
Size
5013 bytes
Lines
110
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.

Dependency Surface

Detected Declarations

Annotated Snippet

What:		/sys/bus/soundwire/devices/sdw:.../status
		/sys/bus/soundwire/devices/sdw:.../device_number

Date:		September 2020

Contact:	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
		Bard Liao <yung-chuan.liao@linux.intel.com>
		Vinod Koul <vkoul@kernel.org>

Description:	SoundWire Slave status

		These properties report the Slave status, e.g. if it
		is UNATTACHED or not, and in the latter case show the
		device_number. This status information is useful to
		detect devices exposed by platform firmware but not
		physically present on the bus, and conversely devices
		not exposed in platform firmware but enumerated.

What:		/sys/bus/soundwire/devices/sdw:.../dev-properties/mipi_revision
		/sys/bus/soundwire/devices/sdw:.../dev-properties/wake_capable
		/sys/bus/soundwire/devices/sdw:.../dev-properties/test_mode_capable
		/sys/bus/soundwire/devices/sdw:.../dev-properties/clk_stop_mode1
		/sys/bus/soundwire/devices/sdw:.../dev-properties/simple_clk_stop_capable
		/sys/bus/soundwire/devices/sdw:.../dev-properties/clk_stop_timeout
		/sys/bus/soundwire/devices/sdw:.../dev-properties/ch_prep_timeout
		/sys/bus/soundwire/devices/sdw:.../dev-properties/reset_behave
		/sys/bus/soundwire/devices/sdw:.../dev-properties/high_PHY_capable
		/sys/bus/soundwire/devices/sdw:.../dev-properties/paging_support
		/sys/bus/soundwire/devices/sdw:.../dev-properties/bank_delay_support
		/sys/bus/soundwire/devices/sdw:.../dev-properties/p15_behave
		/sys/bus/soundwire/devices/sdw:.../dev-properties/master_count
		/sys/bus/soundwire/devices/sdw:.../dev-properties/source_ports
		/sys/bus/soundwire/devices/sdw:.../dev-properties/sink_ports

Date:		May 2020

Contact:	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
		Bard Liao <yung-chuan.liao@linux.intel.com>
		Vinod Koul <vkoul@kernel.org>

Description:	SoundWire Slave DisCo properties.
		These properties are defined by MIPI DisCo Specification
		for SoundWire. They define various properties of the
		SoundWire Slave and are used by the bus to configure
		the Slave


What:		/sys/bus/soundwire/devices/sdw:.../dp0/max_word
		/sys/bus/soundwire/devices/sdw:.../dp0/min_word
		/sys/bus/soundwire/devices/sdw:.../dp0/words
		/sys/bus/soundwire/devices/sdw:.../dp0/BRA_flow_controlled
		/sys/bus/soundwire/devices/sdw:.../dp0/simple_ch_prep_sm
		/sys/bus/soundwire/devices/sdw:.../dp0/imp_def_interrupts

Date:		May 2020

Contact:	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
		Bard Liao <yung-chuan.liao@linux.intel.com>
		Vinod Koul <vkoul@kernel.org>

Description:	SoundWire Slave Data Port-0 DisCo properties.
		These properties are defined by MIPI DisCo Specification
		for the SoundWire. They define various properties of the
		Data port 0 are used by the bus to configure the Data Port 0.


What:		/sys/bus/soundwire/devices/sdw:.../dp<N>_src/max_word
		/sys/bus/soundwire/devices/sdw:.../dp<N>_src/min_word
		/sys/bus/soundwire/devices/sdw:.../dp<N>_src/words
		/sys/bus/soundwire/devices/sdw:.../dp<N>_src/type

Annotation

Implementation Notes