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Diffstat (limited to 'Documentation/hwmon/pmbus-core.rst')
| -rw-r--r-- | Documentation/hwmon/pmbus-core.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/hwmon/pmbus-core.rst b/Documentation/hwmon/pmbus-core.rst index e7e0c9ef10be..84c5a4e40c40 100644 --- a/Documentation/hwmon/pmbus-core.rst +++ b/Documentation/hwmon/pmbus-core.rst @@ -121,6 +121,15 @@ Specifically, it provides the following information. non-standard PMBus commands to standard commands, or to augment standard command return values with device specific information. +PEC Support +=========== + +Many PMBus devices support SMBus PEC (Packet Error Checking). If supported +by both the I2C adapter and by the PMBus chip, it is by default enabled. +If PEC is supported, the PMBus core driver adds an attribute named 'pec' to +the I2C device. This attribute can be used to control PEC support in the +communication with the PMBus chip. + API functions ============= |