Changeset 266d0871 in mainline for uspace/lib/usbvirt/src/ctrlpipe.c

Timestamp:

2010-12-15T13:25:20Z (14 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

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

Children:

1840e0d

Parents:

d5e7668

Message:

usbvirt: add callback when device changes state

The virtual root hub uses this to suspend power source to all
ports when entering `configured' state.

File:

• uspace/lib/usbvirt/src/ctrlpipe.c (modified) (2 diffs)

uspace/lib/usbvirt/src/ctrlpipe.c

@@ -154 +154 @@
                  * setting address when in configured state).
                  */
+                usbvirt_device_state_t new_state;
                 if (device->new_address == 0) {
-                        device->state = USBVIRT_STATE_DEFAULT;
+                        new_state = USBVIRT_STATE_DEFAULT;
                 } else {
-                        device->state = USBVIRT_STATE_ADDRESS;
+                        new_state = USBVIRT_STATE_ADDRESS;
                 }
                 device->address = device->new_address;
@@ -163 +164 @@
                 device->new_address = -1;
                 
+                if (DEVICE_HAS_OP(device, on_state_change)) {
+                        device->ops->on_state_change(device, device->state,
+                            new_state);
+                }
+                device->state = new_state;
+
                 device->lib_debug(device, 2, USBVIRT_DEBUGTAG_CONTROL_PIPE_ZERO,
                     "device address changed to %d (state %s)",