Changes in uspace/lib/usb/src/hc.c [e280857:79ae36dd] in mainline

File:

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

uspace/lib/usb/src/hc.c

@@ -98 +98 @@
                 return EBUSY;
         
-        async_sess_t *sess = devman_device_connect(EXCHANGE_ATOMIC,
+        async_sess_t *sess = devman_device_connect(EXCHANGE_SERIALIZE,
             connection->hc_handle, 0);
         if (!sess)
@@ -177 +177 @@
 {
         async_sess_t *parent_sess =
-            devman_parent_device_connect(EXCHANGE_ATOMIC, dev_handle,
+            devman_parent_device_connect(EXCHANGE_SERIALIZE, dev_handle,
             IPC_FLAG_BLOCKING);
         if (!parent_sess)
@@ -201 +201 @@
 /** Get host controller handle by its class index.
  *
- * @param sid Service ID of the HC function.
+ * @param class_index Class index for the host controller.
  * @param hc_handle Where to store the HC handle
  *      (can be NULL for existence test only).
  * @return Error code.
  */
-int usb_ddf_get_hc_handle_by_sid(service_id_t sid, devman_handle_t *hc_handle)
-{
-        devman_handle_t handle;
+int usb_ddf_get_hc_handle_by_class(size_t class_index,
+    devman_handle_t *hc_handle)
+{
+        char *class_index_str;
+        devman_handle_t hc_handle_tmp;
         int rc;
-        
-        rc = devman_fun_sid_to_handle(sid, &handle);
-        if (hc_handle != NULL)
-                *hc_handle = handle;
-        
-        return rc;
+
+        rc = asprintf(&class_index_str, "%zu", class_index);
+        if (rc < 0) {
+                return ENOMEM;
+        }
+        rc = devman_device_get_handle_by_class("usbhc", class_index_str,
+            &hc_handle_tmp, 0);
+        free(class_index_str);
+        if (rc != EOK) {
+                return rc;
+        }
+
+        if (hc_handle != NULL) {
+                *hc_handle = hc_handle_tmp;
+        }
+
+        return EOK;
 }
 
@@ -228 +241 @@
 {
         async_sess_t *parent_sess =
-            devman_parent_device_connect(EXCHANGE_ATOMIC, device_handle,
+            devman_parent_device_connect(EXCHANGE_SERIALIZE, device_handle,
             IPC_FLAG_BLOCKING);
         if (!parent_sess)