Changeset 04028225 in mainline for uspace/lib/usb/src/hc.c

Timestamp:

2011-05-20T20:11:39Z (14 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

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

Children:

a9ab7f47

Parents:

0edf7c7

Message:

Getting address by handle also moved into libusb

File:

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

uspace/lib/usb/src/hc.c

@@ -171 +171 @@
 }
 
+/** Tell USB address assigned to device with given handle.
+ *
+ * @param dev_handle Devman handle of the USB device in question.
+ * @return USB address or negative error code.
+ */
+usb_address_t usb_hc_get_address_by_handle(devman_handle_t dev_handle)
+{
+        int parent_phone = devman_parent_device_connect(dev_handle,
+            IPC_FLAG_BLOCKING);
+        if (parent_phone < 0) {
+                return parent_phone;
+        }
+
+        sysarg_t address;
+
+        int rc = async_req_2_1(parent_phone, DEV_IFACE_ID(USB_DEV_IFACE),
+            IPC_M_USB_GET_ADDRESS,
+            dev_handle, &address);
+
+        if (rc != EOK) {
+                return rc;
+        }
+
+        async_hangup(parent_phone);
+
+        return (usb_address_t) address;
+}
+
 
 /** Get host controller handle by its class index.