/**
* osp_device_open:
* @device: a #GUsbDevice instance
* @error: A #GError or %NULL
*
* Opens the device and claims the interface
*
* Return value: %TRUE for success
*
* Since: 1.2.11
**/
gboolean
osp_device_open (GUsbDevice *device, GError **error)
{
g_return_val_if_fail (G_USB_IS_DEVICE (device), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
if (!g_usb_device_open (device, error))
return FALSE;
if (!g_usb_device_claim_interface (device, 0x00, 0, error)) {
g_prefix_error (error, "Failed to claim interface: ");
return FALSE;
}
return TRUE;
}
/**
* cd_sensor_open_usb_device:
**/
GUsbDevice *
cd_sensor_open_usb_device (CdSensor *sensor,
gint config,
gint interface,
GError **error)
{
CdSensorPrivate *priv = sensor->priv;
gboolean ret;
guint8 busnum;
guint8 devnum;
GUsbDevice *device;
GUsbDevice *device_success = NULL;
/* convert from GUdevDevice to GUsbDevice */
busnum = g_udev_device_get_sysfs_attr_as_int (priv->device, "busnum");
devnum = g_udev_device_get_sysfs_attr_as_int (priv->device, "devnum");
device = g_usb_device_list_find_by_bus_address (priv->device_list,
busnum,
devnum,
error);
if (device == NULL)
goto out;
/* open device, set config and claim interface */
ret = g_usb_device_open (device, error);
if (!ret)
goto out;
ret = g_usb_device_set_configuration (device,
config,
error);
if (!ret)
goto out;
ret = g_usb_device_claim_interface (device,
interface,
G_USB_DEVICE_CLAIM_INTERFACE_BIND_KERNEL_DRIVER,
error);
if (!ret)
goto out;
/* success */
device_success = g_object_ref (device);
out:
if (device != NULL)
g_object_unref (device);
return device_success;
}
/**
* cd_sensor_open_usb_device:
**/
GUsbDevice *
cd_sensor_open_usb_device (CdSensor *sensor,
gint config,
gint interface,
GError **error)
{
#ifdef HAVE_UDEV
CdSensorPrivate *priv = GET_PRIVATE (sensor);
guint8 busnum;
guint8 devnum;
g_autoptr(GUsbDevice) device = NULL;
/* convert from GUdevDevice to GUsbDevice */
busnum = g_udev_device_get_sysfs_attr_as_int (priv->device, "busnum");
devnum = g_udev_device_get_sysfs_attr_as_int (priv->device, "devnum");
device = g_usb_context_find_by_bus_address (priv->usb_ctx,
busnum, devnum, error);
if (device == NULL)
return NULL;
/* open device, set config and claim interface */
if (!g_usb_device_open (device, error))
return NULL;
if (!g_usb_device_set_configuration (device, config, error))
return NULL;
if (!g_usb_device_claim_interface (device, interface,
G_USB_DEVICE_CLAIM_INTERFACE_BIND_KERNEL_DRIVER,
error)) {
return NULL;
}
return g_object_ref (device);
#else
g_set_error_literal (error, 1, 0, "failed: no gudev support");
return NULL;
#endif
}
