Changes in uspace/lib/usb/src/devdrv.c [0b4e7ca:4ede178] in mainline

File:

• uspace/lib/usb/src/devdrv.c (modified) (4 diffs)

uspace/lib/usb/src/devdrv.c

@@ -239 +239 @@
 
         /*
-         * For further actions, we need open session on default control pipe.
+         * We will do some querying of the device, it is worth to prepare
+         * the long transfer.
          */
-        rc = usb_pipe_start_session(&dev->ctrl_pipe);
-        if (rc != EOK) {
-                usb_log_error("Failed to start an IPC session: %s.\n",
+        rc = usb_pipe_start_long_transfer(&dev->ctrl_pipe);
+        if (rc != EOK) {
+                usb_log_error("Failed to start transfer: %s.\n",
                     str_error(rc));
                 return rc;
@@ -252 +253 @@
             &dev->descriptors.device);
         if (rc != EOK) {
+                usb_pipe_end_long_transfer(&dev->ctrl_pipe);
                 usb_log_error("Failed to retrieve device descriptor: %s.\n",
                     str_error(rc));
@@ -262 +264 @@
             &dev->descriptors.configuration_size);
         if (rc != EOK) {
-                usb_log_error("Failed retrieving configuration descriptor: %s.\n",
+                usb_pipe_end_long_transfer(&dev->ctrl_pipe);
+                usb_log_error("Failed retrieving configuration descriptor: %s. %s\n",
                     dev->ddf_dev->name, str_error(rc));
                 return rc;
@@ -271 +274 @@
         }
 
-        /* No checking here. */
-        usb_pipe_end_session(&dev->ctrl_pipe);
+        usb_pipe_end_long_transfer(&dev->ctrl_pipe);
 
         /* Rollback actions. */