static gboolean
fu_altos_device_find_tty (FuAltosDevice *self, GError **error)
{
GUsbDevice *usb_device = fu_usb_device_get_dev (FU_USB_DEVICE (self));
g_autoptr(GList) devices = NULL;
g_autoptr(GUdevClient) gudev_client = g_udev_client_new (NULL);
/* find all tty devices */
devices = g_udev_client_query_by_subsystem (gudev_client, "tty");
for (GList *l = devices; l != NULL; l = l->next) {
GUdevDevice *dev = G_UDEV_DEVICE (l->data);
/* get the tty device */
const gchar *dev_file = g_udev_device_get_device_file (dev);
if (dev_file == NULL)
continue;
/* get grandparent */
dev = g_udev_device_get_parent (dev);
if (dev == NULL)
continue;
dev = g_udev_device_get_parent (dev);
if (dev == NULL)
continue;
/* check correct device */
if (g_udev_device_get_sysfs_attr_as_int (dev, "busnum") !=
g_usb_device_get_bus (usb_device))
continue;
if (g_udev_device_get_sysfs_attr_as_int (dev, "devnum") !=
g_usb_device_get_address (usb_device))
continue;
/* success */
self->tty = g_strdup (dev_file);
return TRUE;
}
/* failure */
g_set_error (error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,
"failed to find tty for %u:%u",
g_usb_device_get_bus (usb_device),
g_usb_device_get_address (usb_device));
return FALSE;
}
/**
* 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
}
/**
* pk_device_rebind:
**/
static gboolean
pk_device_rebind (GUdevClient *client, const gchar *path, GError **error)
{
GUdevDevice *device;
gint busnum;
gint devnum;
gboolean ret = FALSE;
const gchar *driver;
const gchar *subsystem;
gchar *bus_id = NULL;
GError *error_local = NULL;
/* get device */
device = g_udev_client_query_by_sysfs_path (client, path);
if (device == NULL) {
/* TRANSLATORS: the device could not be found in sysfs */
*error = g_error_new (1, 0, "%s: %s\n", _("Device could not be found"), path);
goto out;
}
/* get properties about the device */
driver = g_udev_device_get_driver (device);
subsystem = g_udev_device_get_subsystem (device);
busnum = g_udev_device_get_sysfs_attr_as_int (device, "busnum");
devnum = g_udev_device_get_sysfs_attr_as_int (device, "devnum");
/* debug */
if (verbose) {
g_debug ("DEVICE: driver:%s, subsystem:%s, busnum:%i, devnum:%i",
driver, subsystem, busnum, devnum);
}
/* form the bus id as recognised by the kernel */
bus_id = g_path_get_basename (path);
/* FIXME: sometimes the busnum is incorrect */
if (bus_id == NULL)
bus_id = g_strdup_printf ("%i-%i", busnum, devnum);
/* unbind device */
ret = pk_device_unbind (path, bus_id, &error_local);
if (!ret) {
/* TRANSLATORS: we failed to release the current driver */
*error = g_error_new (1, 0, "%s: %s", _("Failed to unregister driver"), error_local->message);
g_error_free (error_local);
goto out;
}
/* bind device */
ret = pk_device_bind (bus_id, subsystem, driver, &error_local);
if (!ret) {
/* TRANSLATORS: we failed to bind the old driver */
*error = g_error_new (1, 0, "%s: %s", _("Failed to register driver"), error_local->message);
g_error_free (error_local);
goto out;
}
out:
g_free (bus_id);
if (device != NULL)
g_object_unref (device);
return ret;
}
