Documentation/ABI/stable/sysfs-bus-firewire

   1 What:           /sys/bus/firewire/devices/fw[0-9]+/
   2 Date:           May 2007
   3 KernelVersion:  2.6.22
   4 Contact:        linux1394-devel@lists.sourceforge.net
   5 Description:
   6                 IEEE 1394 node device attributes.
   7                 Read-only.  Mutable during the node device's lifetime.
   8                 See IEEE 1212 for semantic definitions.
   9
  10                 config_rom
  11                         Contents of the Configuration ROM register.
  12                         Binary attribute; an array of host-endian u32.
  13
  14                 guid
  15                         The node's EUI-64 in the bus information block of
  16                         Configuration ROM.
  17                         Hexadecimal string representation of an u64.
  18
  19
  20 What:           /sys/bus/firewire/devices/fw[0-9]+/units
  21 Date:           June 2009
  22 KernelVersion:  2.6.31
  23 Contact:        linux1394-devel@lists.sourceforge.net
  24 Description:
  25                 IEEE 1394 node device attribute.
  26                 Read-only.  Mutable during the node device's lifetime.
  27                 See IEEE 1212 for semantic definitions.
  28
  29                 units
  30                         Summary of all units present in an IEEE 1394 node.
  31                         Contains space-separated tuples of specifier_id and
  32                         version of each unit present in the node.  Specifier_id
  33                         and version are hexadecimal string representations of
  34                         u24 of the respective unit directory entries.
  35                         Specifier_id and version within each tuple are separated
  36                         by a colon.
  37
  38 Users:          udev rules to set ownership and access permissions or ACLs of
  39                 /dev/fw[0-9]+ character device files
  40
  41
  42 What:           /sys/bus/firewire/devices/fw[0-9]+/is_local
  43 Date:           July 2012
  44 KernelVersion:  3.6
  45 Contact:        linux1394-devel@lists.sourceforge.net
  46 Description:
  47                 IEEE 1394 node device attribute.
  48                 Read-only and immutable.
  49 Values:         1: The sysfs entry represents a local node (a controller card).
  50                 0: The sysfs entry represents a remote node.
  51
  52
  53 What:           /sys/bus/firewire/devices/fw[0-9]+[.][0-9]+/
  54 Date:           May 2007
  55 KernelVersion:  2.6.22
  56 Contact:        linux1394-devel@lists.sourceforge.net
  57 Description:
  58                 IEEE 1394 unit device attributes.
  59                 Read-only.  Immutable during the unit device's lifetime.
  60                 See IEEE 1212 for semantic definitions.
  61
  62                 modalias
  63                         Same as MODALIAS in the uevent at device creation.
  64
  65                 rom_index
  66                         Offset of the unit directory within the parent device's
  67                         (node device's) Configuration ROM, in quadlets.
  68                         Decimal string representation.
  69
  70
  71 What:           /sys/bus/firewire/devices/*/
  72 Date:           May 2007
  73 KernelVersion:  2.6.22
  74 Contact:        linux1394-devel@lists.sourceforge.net
  75 Description:
  76                 Attributes common to IEEE 1394 node devices and unit devices.
  77                 Read-only.  Mutable during the node device's lifetime.
  78                 Immutable during the unit device's lifetime.
  79                 See IEEE 1212 for semantic definitions.
  80
  81                 These attributes are only created if the root directory of an
  82                 IEEE 1394 node or the unit directory of an IEEE 1394 unit
  83                 actually contains according entries.
  84
  85                 hardware_version
  86                         Hexadecimal string representation of an u24.
  87
  88                 hardware_version_name
  89                         Contents of a respective textual descriptor leaf.
  90
  91                 model
  92                         Hexadecimal string representation of an u24.
  93
  94                 model_name
  95                         Contents of a respective textual descriptor leaf.
  96
  97                 specifier_id
  98                         Hexadecimal string representation of an u24.
  99                         Mandatory in unit directories according to IEEE 1212.
 100
 101                 vendor
 102                         Hexadecimal string representation of an u24.
 103                         Mandatory in the root directory according to IEEE 1212.
 104
 105                 vendor_name
 106                         Contents of a respective textual descriptor leaf.
 107
 108                 version
 109                         Hexadecimal string representation of an u24.
 110                         Mandatory in unit directories according to IEEE 1212.
 111
 112
 113 What:           /sys/bus/firewire/drivers/sbp2/fw*/host*/target*/*:*:*:*/ieee1394_id
 114                 formerly
 115                 /sys/bus/ieee1394/drivers/sbp2/fw*/host*/target*/*:*:*:*/ieee1394_id
 116 Date:           Feb 2004
 117 KernelVersion:  2.6.4
 118 Contact:        linux1394-devel@lists.sourceforge.net
 119 Description:
 120                 SCSI target port identifier and logical unit identifier of a
 121                 logical unit of an SBP-2 target.  The identifiers are specified
 122                 in SAM-2...SAM-4 annex A.  They are persistent and world-wide
 123                 unique properties the SBP-2 attached target.
 124
 125                 Read-only attribute, immutable during the target's lifetime.
 126                 Format, as exposed by firewire-sbp2 since 2.6.22, May 2007:
 127                 Colon-separated hexadecimal string representations of
 128                         u64 EUI-64 : u24 directory_ID : u16 LUN
 129                 without 0x prefixes, without whitespace.  The former sbp2 driver
 130                 (removed in 2.6.37 after being superseded by firewire-sbp2) used
 131                 a somewhat shorter format which was not as close to SAM.
 132
 133 Users:          udev rules to create /dev/disk/by-id/ symlinks