ieee1394: move some comments from declaration to definition
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/ieee1394/ieee1394_transactions.c b/drivers/ieee1394/ieee1394_transactions.c
index 0833fc9..6f07cd8 100644
--- a/drivers/ieee1394/ieee1394_transactions.c
+++ b/drivers/ieee1394/ieee1394_transactions.c
@@ -212,6 +212,15 @@
wake_up_interruptible(&tlabel_wq);
}
+/**
+ * hpsb_packet_success - Make sense of the ack and reply codes
+ *
+ * Make sense of the ack and reply codes and return more convenient error codes:
+ * 0 = success. -%EBUSY = node is busy, try again. -%EAGAIN = error which can
+ * probably resolved by retry. -%EREMOTEIO = node suffers from an internal
+ * error. -%EACCES = this transaction is not allowed on requested address.
+ * -%EINVAL = invalid address at node.
+ */
int hpsb_packet_success(struct hpsb_packet *packet)
{
switch (packet->ack_code) {
@@ -493,6 +502,16 @@
* avoid in kernel buffers for user space callers
*/
+/**
+ * hpsb_read - generic read function
+ *
+ * Recognizes the local node ID and act accordingly. Automatically uses a
+ * quadlet read request if @length == 4 and and a block read request otherwise.
+ * It does not yet support lengths that are not a multiple of 4.
+ *
+ * You must explicitly specifiy the @generation for which the node ID is valid,
+ * to avoid sending packets to the wrong nodes when we race with a bus reset.
+ */
int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation,
u64 addr, quadlet_t * buffer, size_t length)
{
@@ -532,6 +551,16 @@
return retval;
}
+/**
+ * hpsb_write - generic write function
+ *
+ * Recognizes the local node ID and act accordingly. Automatically uses a
+ * quadlet write request if @length == 4 and and a block write request
+ * otherwise. It does not yet support lengths that are not a multiple of 4.
+ *
+ * You must explicitly specifiy the @generation for which the node ID is valid,
+ * to avoid sending packets to the wrong nodes when we race with a bus reset.
+ */
int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
u64 addr, quadlet_t * buffer, size_t length)
{