/** * device_reprobe - remove driver for a device and probe for a new driver * @dev: the device to reprobe * * This function detaches the attached driver (if any) for the given * device and restarts the driver probing process. It is intended * to use if probing criteria changed during a devices lifetime and * driver attachment should change accordingly. */ int device_reprobe(struct device *dev) { if (dev->driver) { if (dev->parent) /* Needed for USB */ device_lock(dev->parent); device_release_driver(dev); if (dev->parent) device_unlock(dev->parent); } return bus_rescan_devices_helper(dev, NULL); }
/** * device_reprobe - remove driver for a device and probe for a new driver * @dev: the device to reprobe * * This function detaches the attached driver (if any) for the given * device and restarts the driver probing process. It is intended * to use if probing criteria changed during a devices lifetime and * driver attachment should change accordingly. */ int device_reprobe(struct device *dev) { if (dev->driver) { if (dev->parent) /* Needed for USB */ down(&dev->parent->sem); device_release_driver(dev); if (dev->parent) up(&dev->parent->sem); } return bus_rescan_devices_helper(dev, NULL); }
static ssize_t store_drivers_probe(struct bus_type *bus, const char *buf, size_t count) { struct device *dev; dev = bus_find_device_by_name(bus, NULL, buf); if (!dev) return -ENODEV; if (bus_rescan_devices_helper(dev, NULL) != 0) return -EINVAL; return count; }
static ssize_t drivers_probe_store(struct bus_type *bus, const char *buf, size_t count) { struct device *dev; int err = -EINVAL; dev = bus_find_device_by_name(bus, NULL, buf); if (!dev) return -ENODEV; if (bus_rescan_devices_helper(dev, NULL) == 0) err = count; put_device(dev); return err; }
/** * device_reprobe - remove driver for a device and probe for a new driver * @dev: the device to reprobe * * This function detaches the attached driver (if any) for the given * device and restarts the driver probing process. It is intended * to use if probing criteria changed during a devices lifetime and * driver attachment should change accordingly. */ int device_reprobe(struct device *dev) { if (dev->driver) device_driver_detach(dev); return bus_rescan_devices_helper(dev, NULL); }