Changes in uspace/lib/usb/src/localdrv.c [4d31d58:62c9661] in mainline

File:

• uspace/lib/usb/src/localdrv.c (modified) (1 diff)

uspace/lib/usb/src/localdrv.c

@@ -39 +39 @@
 #include <errno.h>
 
+/** Find host controller when handled by current task.
+ *
+ * @param dev Device asking for connection.
+ * @return Device structure corresponding to parent host controller.
+ * @retval NULL Corresponding host controller not found.
+ */
+device_t *usb_hc_connect(device_t *dev)
+{
+        /*
+         * FIXME: this will not work when some hub on the path is
+         * not driven by the same task.
+         */
+        device_t *parent = dev;
+        while (parent->parent != NULL) {
+                parent = parent->parent;
+        }
+        
+        if (dev == parent) {
+                printf("FIXME in %s:%d encountered!\n", __FILE__, __LINE__);
+                parent = NULL;
+        }
+
+        return parent;
+}
+
 /** Information about pending transaction on HC. */
 typedef struct {