[PATCH v8 18/24] drivers/fsi: Document FSI master sysfs files in ABI
Christopher Bostic
cbostic at linux.vnet.ibm.com
Tue Jun 6 14:08:53 PDT 2017
Add info for sysfs scan file in Documentaiton ABI/testing
Signed-off-by: Christopher Bostic <cbostic at linux.vnet.ibm.com>
---
v7 - Rename scan file to 'rescan'
- Add 'raw' file details
- Add 'term' file details
- Add 'break' file details
- Update kernel version for each file to 4.12
---
Documentation/ABI/testing/sysfs-bus-fsi | 38 +++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-fsi
diff --git a/Documentation/ABI/testing/sysfs-bus-fsi b/Documentation/ABI/testing/sysfs-bus-fsi
new file mode 100644
index 0000000..57c8063
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-fsi
@@ -0,0 +1,38 @@
+What: /sys/bus/platform/devices/fsi-master/rescan
+Date: May 2017
+KernelVersion: 4.12
+Contact: cbostic at linux.vnet.ibm.com
+Description:
+ Initiates a FSI master scan for all connected slave devices
+ on its links.
+
+What: /sys/bus/platform/devices/fsi-master/break
+Date: May 2017
+KernelVersion: 4.12
+Contact: cbostic at linux.vnet.ibm.com
+Description:
+ Sends an FSI BREAK command on a master's communication
+ link to any connnected slaves. A BREAK resets connected
+ device's logic and preps it to receive further commands
+ from the master.
+
+What: /sys/bus/platform/devices/fsi-master/slave at 00:00/term
+Date: May 2017
+KernelVersion: 4.12
+Contact: cbostic at linux.vnet.ibm.com
+Description:
+ Sends an FSI terminate command from the master to its
+ connected slave. A terminate resets the slave's state machines
+ that control access to the internally connected engines. In
+ addition the slave freezes its internal error register for
+ debugging purposes. This command is also needed to abort any
+ ongoing operation in case of an expired 'Master Time Out'
+ timer.
+
+What: /sys/bus/platform/devices/fsi-master/slave at 00:00/raw
+Date: May 2017
+KernelVersion: 4.12
+Contact: cbostic at linux.vnet.ibm.com
+Description:
+ Provides a means of reading/writing a 32 bit value from/to a
+ specified FSI bus address.
--
1.8.2.2
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