PEL: Document the supported dev callout types
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I7d2892757f053cef56cb55dd809dfe90cac21061
diff --git a/extensions/openpower-pels/README.md b/extensions/openpower-pels/README.md
index 8c85c17..fac2373 100644
--- a/extensions/openpower-pels/README.md
+++ b/extensions/openpower-pels/README.md
@@ -203,7 +203,7 @@
these device paths to FRU callout lists. The errno value may influence the
callout.
- TBD: Which exact types of device paths are supported.
+ I2C, FSI, FSI-I2C, and FSI-SPI paths are supported.
```
CALLOUT_DEVICE_PATH="/sys/bus/i2c/devices/3-0069"
@@ -216,7 +216,8 @@
full device path isn't known. It is similar to CALLOUT_DEVICE_PATH in that
it will use data tables generated by the MRW to create the callouts.
- CALLOUT_IIC_BUS is in the form "/dev/i2c-X" where X is the bus number.
+ CALLOUT_IIC_BUS is in the form "/dev/i2c-X" where X is the bus number, or
+ just the bus number by itself.
CALLOUT_IIC_ADDR is the 7 bit address either as a decimal or a hex number
if preceded with a "0x".