The callback descrption in hwmon.h was misleading and stated that read and
write callbacks would be optional. More accurate is is that the callbacks
are mandatory if readable / writeable attributes are present.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
include/linux/hwmon.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
index 9d2f8bde7d12..b6a86aa4a9e2 100644
--- a/include/linux/hwmon.h
+++ b/include/linux/hwmon.h
@@ -298,8 +298,7 @@ enum hwmon_pwm_attributes {
* Channel number
* The function returns the file permissions.
* If the return value is 0, no attribute will be created.
- * @read: Read callback. Optional. If not provided, attributes
- * will not be readable.
+ * @read: Read callback. Mandatory if readable attributes are present.
* Parameters are:
* @dev: Pointer to hardware monitoring device
* @type: Sensor type
@@ -308,8 +307,7 @@ enum hwmon_pwm_attributes {
* Channel number
* @val: Pointer to returned value
* The function returns 0 on success or a negative error number.
- * @write: Write callback. Optional. If not provided, attributes
- * will not be writable.
+ * @write: Write callback. Mandatory if writeable attributes are present.
* Parameters are:
* @dev: Pointer to hardware monitoring device
* @type: Sensor type
--
2.5.0
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