Changeset 5410c04 in mainline for uspace/drv/usbmid/main.c

Timestamp:

2011-04-09T16:11:41Z (14 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

a9d67aa, c6394aa

Parents:

8e8b84f (diff), 7b715892 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Automatic pipe sessions

It is no longer necessary to start sessions on USB pipes manually.
Actually, the original functions usb_pipe_start/end_session are now
deprecated.

For sporadic transfers, you do not need to care about sessions at all.
For longer transfers, you may hint the library about it by calling
usb_pipe_start_long_transfer.

File:

• uspace/drv/usbmid/main.c (modified) (2 diffs)

uspace/drv/usbmid/main.c

@@ -55 +55 @@
         int rc;
 
-        rc = usb_pipe_start_session(&dev->ctrl_pipe);
+        rc = usb_pipe_start_long_transfer(&dev->ctrl_pipe);
         if (rc != EOK) {
-                usb_log_error("Failed to start session on control pipe: %s.\n",
+                usb_log_error("Failed to start transfer on control pipe: %s.\n",
                     str_error(rc));
                 return rc;
@@ -64 +64 @@
         bool accept = usbmid_explore_device(dev);
 
-        rc = usb_pipe_end_session(&dev->ctrl_pipe);
-        if (rc != EOK) {
-                usb_log_warning("Failed to end session on control pipe: %s.\n",
-                    str_error(rc));
-        }
+        usb_pipe_end_long_transfer(&dev->ctrl_pipe);
 
         if (!accept) {