From: Felipe Balbi <felipe.balbi@xxxxxxxxx>
trivial patch, no functional changes.
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxx>
---
drivers/cbus/cbus.c | 43 +++++++++++++++++++++++++++++++++++++++----
1 files changed, 39 insertions(+), 4 deletions(-)
diff --git a/drivers/cbus/cbus.c b/drivers/cbus/cbus.c
index bae7b3e..527780f 100644
--- a/drivers/cbus/cbus.c
+++ b/drivers/cbus/cbus.c
@@ -58,6 +58,12 @@ struct cbus_host {
static struct cbus_host *cbus_host;
+/**
+ * cbus_send_bit - sends one bit over the bus
+ * @host: the host we're using
+ * @bit: one bit of information to send
+ * @input: whether to set data pin as input after sending
+ */
static int cbus_send_bit(struct cbus_host *host, unsigned bit,
unsigned input)
{
@@ -75,6 +81,13 @@ static int cbus_send_bit(struct cbus_host *host, unsigned bit,
return ret;
}
+/**
+ * cbus_send_data - sends @len amount of data over the bus
+ * @host: the host we're using
+ * @data: the data to send
+ * @len: size of the transfer
+ * @input: whether to set data pin as input after sending
+ */
static int cbus_send_data(struct cbus_host *host, unsigned data, unsigned len,
unsigned input)
{
@@ -92,6 +105,10 @@ out:
return ret;
}
+/**
+ * cbus_receive_bit - receives one bit from the bus
+ * @host: the host we're using
+ */
static int cbus_receive_bit(struct cbus_host *host)
{
int ret;
@@ -106,6 +123,11 @@ out:
return ret;
}
+/**
+ * cbus_receive_data - receives @len data from the bus
+ * @host: the host we're using
+ * @len: the length of data to receive
+ */
static int cbus_receive_data(struct cbus_host *host, unsigned len)
{
int ret = 0;
@@ -125,6 +147,14 @@ out:
return ret;
}
+/**
+ * cbus_transfer - transfers data over the bus
+ * @host: the host we're using
+ * @rw: read/write flag
+ * @dev: device address
+ * @reg: register address
+ * @data: if @rw == 0 data to send otherwise 0
+ */
static int cbus_transfer(struct cbus_host *host, unsigned rw, unsigned dev,
unsigned reg, unsigned data)
{
@@ -192,8 +222,10 @@ out:
return ret;
}
-/*
- * Read a given register from the device
+/**
+ * cbus_read_reg - reads a given register from the device
+ * @dev: device address
+ * @reg: register address
*/
int cbus_read_reg(unsigned dev, unsigned reg)
{
@@ -201,8 +233,11 @@ int cbus_read_reg(unsigned dev, unsigned reg)
}
EXPORT_SYMBOL(cbus_read_reg);
-/*
- * Write to a given register of the device
+/**
+ * cbus_write_reg - writes to a given register of the device
+ * @dev: device address
+ * @reg: register address
+ * @val: data to be written to @reg
*/
int cbus_write_reg(unsigned dev, unsigned reg, unsigned val)
{
--
1.7.0.rc0.33.g7c3932
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
