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| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2013-05-24 15:55:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-24 16:22:50 -0700 |
| commit | 5eeb929390de7d5219483a1ca10cce4a84066099 (patch) | |
| tree | a0fff27850d77ac020a48d1ee68a3c249ea2fa36 /Documentation/rapidio/sysfs.txt | |
| parent | bc8fcfea18249640f2728c46d70999dcb7e4dc49 (diff) | |
| download | linux-5eeb929390de7d5219483a1ca10cce4a84066099.tar.bz2 | |
rapidio: documentation update for enumeration changes
Update RapidIO documentation to reflect changes made to
enumeration/discovery build configuration and user space triggering
mechanism.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@Prodrive.nl>
Cc: Micha Nelissen <micha.nelissen@Prodrive.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/rapidio/sysfs.txt')
| -rw-r--r-- | Documentation/rapidio/sysfs.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/rapidio/sysfs.txt b/Documentation/rapidio/sysfs.txt index 97f71ce575d6..19878179da4c 100644 --- a/Documentation/rapidio/sysfs.txt +++ b/Documentation/rapidio/sysfs.txt @@ -88,3 +88,20 @@ that exports additional attributes. IDT_GEN2: errlog - reads contents of device error log until it is empty. + + +5. RapidIO Bus Attributes +------------------------- + +RapidIO bus subdirectory /sys/bus/rapidio implements the following bus-specific +attribute: + + scan - allows to trigger enumeration discovery process from user space. This + is a write-only attribute. To initiate an enumeration or discovery + process on specific mport device, a user needs to write mport_ID (not + RapidIO destination ID) into this file. The mport_ID is a sequential + number (0 ... RIO_MAX_MPORTS) assigned to the mport device. + For example, for a machine with a single RapidIO controller, mport_ID + for that controller always will be 0. + To initiate RapidIO enumeration/discovery on all available mports + a user must write '-1' (or RIO_MPORT_ANY) into this attribute file. |