drivers: serial: document on_baudrate()
Add parameter description.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c
index c489dea..c499601 100644
--- a/drivers/serial/serial.c
+++ b/drivers/serial/serial.c
@@ -36,7 +36,15 @@
/**
* on_baudrate() - Update the actual baudrate when the env var changes
*
+ * @name: changed environment variable
+ * @value: new value of the environment variable
+ * @op: operation (create, overwrite, or delete)
+ * @flags: attributes of environment variable change,
+ * see flags H_* in include/search.h
+ *
* This will check for a valid baudrate and only apply it if valid.
+ *
+ * Return: 0 on success, 1 on error
*/
static int on_baudrate(const char *name, const char *value, enum env_op op,
int flags)