Documentation/ABI/stable/sysfs-bus-firewire

Source file repositories/reference/linux-study-clean/Documentation/ABI/stable/sysfs-bus-firewire

File Facts

System
Linux kernel
Corpus path
Documentation/ABI/stable/sysfs-bus-firewire
Extension
[no extension]
Size
4288 bytes
Lines
137
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/firewire/devices/fw[0-9]+/
Date:		May 2007
KernelVersion:	2.6.22
Contact:	linux1394-devel@lists.sourceforge.net
Description:
		IEEE 1394 node device attributes.
		Read-only.  Mutable during the node device's lifetime.
		See IEEE 1212 for semantic definitions.

		config_rom
			Contents of the Configuration ROM register.
			Binary attribute; an array of host-endian u32.

		guid
			The node's EUI-64 in the bus information block of
			Configuration ROM.
			Hexadecimal string representation of an u64.


What:		/sys/bus/firewire/devices/fw[0-9]+/units
Date:		June 2009
KernelVersion:	2.6.31
Contact:	linux1394-devel@lists.sourceforge.net
Description:
		IEEE 1394 node device attribute.
		Read-only.  Mutable during the node device's lifetime.
		See IEEE 1212 for semantic definitions.

		units
			Summary of all units present in an IEEE 1394 node.
			Contains space-separated tuples of specifier_id and
			version of each unit present in the node.  Specifier_id
			and version are hexadecimal string representations of
			u24 of the respective unit directory entries.
			Specifier_id and version within each tuple are separated
			by a colon.

Users:		udev rules to set ownership and access permissions or ACLs of
		/dev/fw[0-9]+ character device files


What:		/sys/bus/firewire/devices/fw[0-9]+/is_local
Date:		July 2012
KernelVersion:	3.6
Contact:	linux1394-devel@lists.sourceforge.net
Description:
		IEEE 1394 node device attribute.
		Read-only and immutable.
Values:		1: The sysfs entry represents a local node (a controller card).

		0: The sysfs entry represents a remote node.


What:		/sys/bus/firewire/devices/fw[0-9]+[.][0-9]+/
Date:		May 2007
KernelVersion:	2.6.22
Contact:	linux1394-devel@lists.sourceforge.net
Description:
		IEEE 1394 unit device attributes.
		Read-only.  Immutable during the unit device's lifetime.
		See IEEE 1212 for semantic definitions.

		modalias
			Same as MODALIAS in the uevent at device creation.

		rom_index
			Offset of the unit directory within the parent device's
			(node device's) Configuration ROM, in quadlets.
			Decimal string representation.

Annotation

Implementation Notes