Changeset 5410c04 in mainline for uspace/lib/usb/src/devpoll.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/lib/usb/src/devpoll.c (modified) (1 diff)

uspace/lib/usb/src/devpoll.c

@@ -77 +77 @@
                 int rc;
 
-                rc = usb_pipe_start_session(pipe);
-                if (rc != EOK) {
-                        failed_attempts++;
-                        continue;
-                }
-
                 size_t actual_size;
                 rc = usb_pipe_read(pipe, polling_data->buffer,
                     polling_data->request_size, &actual_size);
 
-                /* Quit the session regardless of errors. */
-                usb_pipe_end_session(pipe);
                 
 //              if (rc == ESTALL) {