Documentation/ABI: clean up sysfs-class-pktcdvd
authorAishwarya Pant <aishpant@gmail.com>
Fri, 23 Feb 2018 13:16:32 +0000 (18:46 +0530)
committerJonathan Corbet <corbet@lwn.net>
Fri, 23 Feb 2018 15:11:34 +0000 (08:11 -0700)
Clean up the sysfs documentation such that it is in the same format as
described in Documentation/ABI/README. Mainly, the patch moves the
attribute names to the 'What:' field. This might be useful for scripting
and tracking changes in the ABI.

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation/ABI/testing/sysfs-class-pktcdvd

index b1c3f02..dde4f26 100644 (file)
@@ -1,60 +1,81 @@
-What:           /sys/class/pktcdvd/
-Date:           Oct. 2006
-KernelVersion:  2.6.20
-Contact:        Thomas Maier <balagi@justmail.de>
-Description:
-
 sysfs interface
 ---------------
+The pktcdvd module (packet writing driver) creates the following files in the
+sysfs: (<devid> is in the format major:minor)
+
+What:          /sys/class/pktcdvd/add
+What:          /sys/class/pktcdvd/remove
+What:          /sys/class/pktcdvd/device_map
+Date:          Oct. 2006
+KernelVersion: 2.6.20
+Contact:       Thomas Maier <balagi@justmail.de>
+Description:
+
+               add:            (WO) Write a block device id (major:minor) to
+                               create a new pktcdvd device and map it to the
+                               block device.
+
+               remove:         (WO) Write the pktcdvd device id (major:minor)
+                               to remove the pktcdvd device.
+
+               device_map:     (RO) Shows the device mapping in format:
+                               pktcdvd[0-7] <pktdevid> <blkdevid>
+
+
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/dev
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/uevent
+Date:          Oct. 2006
+KernelVersion: 2.6.20
+Contact:       Thomas Maier <balagi@justmail.de>
+Description:
+               dev:    (RO) Device id
+
+               uevent: (WO) To send a uevent
+
+
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_started
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_finished
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_written
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read_gather
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/stat/reset
+Date:          Oct. 2006
+KernelVersion: 2.6.20
+Contact:       Thomas Maier <balagi@justmail.de>
+Description:
+               packets_started:        (RO) Number of started packets.
+
+               packets_finished:       (RO) Number of finished packets.
+
+               kb_written:             (RO) kBytes written.
+
+               kb_read:                (RO) kBytes read.
+
+               kb_read_gather:         (RO) kBytes read to fill write packets.
+
+               reset:                  (WO) Write any value to it to reset
+                                       pktcdvd device statistic values, like
+                                       bytes read/written.
+
+
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/size
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_off
+What:          /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_on
+Date:          Oct. 2006
+KernelVersion: 2.6.20
+Contact:       Thomas Maier <balagi@justmail.de>
+Description:
+               size:           (RO) Contains the size of the bio write queue.
+
+               congestion_off: (RW) If bio write queue size is below this mark,
+                               accept new bio requests from the block layer.
 
-The pktcdvd module (packet writing driver) creates
-these files in the sysfs:
-(<devid> is in format  major:minor )
-
-/sys/class/pktcdvd/
-    add            (0200)  Write a block device id (major:minor)
-                           to create a new pktcdvd device and map
-                           it to the block device.
-
-    remove         (0200)  Write the pktcdvd device id (major:minor)
-                           to it to remove the pktcdvd device.
-
-    device_map     (0444)  Shows the device mapping in format:
-                             pktcdvd[0-7] <pktdevid> <blkdevid>
-
-/sys/class/pktcdvd/pktcdvd[0-7]/
-    dev                   (0444) Device id
-    uevent                (0200) To send an uevent.
-
-/sys/class/pktcdvd/pktcdvd[0-7]/stat/
-    packets_started       (0444) Number of started packets.
-    packets_finished      (0444) Number of finished packets.
-
-    kb_written            (0444) kBytes written.
-    kb_read               (0444) kBytes read.
-    kb_read_gather        (0444) kBytes read to fill write packets.
-
-    reset                 (0200) Write any value to it to reset
-                                 pktcdvd device statistic values, like
-                                 bytes read/written.
-
-/sys/class/pktcdvd/pktcdvd[0-7]/write_queue/
-    size                  (0444) Contains the size of the bio write
-                                 queue.
-
-    congestion_off        (0644) If bio write queue size is below
-                                 this mark, accept new bio requests
-                                 from the block layer.
-
-    congestion_on         (0644) If bio write queue size is higher
-                                 as this mark, do no longer accept
-                                 bio write requests from the block
-                                 layer and wait till the pktcdvd
-                                 device has processed enough bio's
-                                 so that bio write queue size is
-                                 below congestion off mark.
-                                 A value of <= 0 disables congestion
-                                 control.
+               congestion_on:  (RW) If bio write queue size is higher as this
+                               mark, do no longer accept bio write requests
+                               from the block layer and wait till the pktcdvd
+                               device has processed enough bio's so that bio
+                               write queue size is below congestion off mark.
+                               A value of <= 0 disables congestion control.
 
 
 Example: