11bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* 21bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * Copyright (c) 2012 Hans Verkuil <hverkuil@xs4all.nl> 31bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * 41bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * This program is free software; you can redistribute it and/or modify 51bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * it under the terms of the GNU General Public License as published by 61bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * the Free Software Foundation; either version 2 of the License, or 71bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * (at your option) any later version. 81bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * 91bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * This program is distributed in the hope that it will be useful, 101bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * but WITHOUT ANY WARRANTY; without even the implied warranty of 111bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 121bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * GNU General Public License for more details. 131bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * 141bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * You should have received a copy of the GNU General Public License 151bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * along with this program; if not, write to the Free Software 161bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 171bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil */ 181bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 191bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* kernel includes */ 201bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/kernel.h> 211bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/module.h> 221bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/init.h> 231bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/slab.h> 241bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/input.h> 251bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/videodev2.h> 261bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <media/v4l2-device.h> 271bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <media/v4l2-ioctl.h> 281bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <media/v4l2-ctrls.h> 291bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <media/v4l2-event.h> 301bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/usb.h> 311bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/version.h> 321bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#include <linux/mutex.h> 331bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 341bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* driver and module definitions */ 351bf20c3a0c616f44359c573b533d06bae960ee45Hans VerkuilMODULE_AUTHOR("Hans Verkuil <hverkuil@xs4all.nl>"); 361bf20c3a0c616f44359c573b533d06bae960ee45Hans VerkuilMODULE_DESCRIPTION("Keene FM Transmitter driver"); 371bf20c3a0c616f44359c573b533d06bae960ee45Hans VerkuilMODULE_LICENSE("GPL"); 381bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 391bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* Actually, it advertises itself as a Logitech */ 401bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#define USB_KEENE_VENDOR 0x046d 411bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#define USB_KEENE_PRODUCT 0x0a0e 421bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 431bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* Probably USB_TIMEOUT should be modified in module parameter */ 441bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#define BUFFER_LENGTH 8 451bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#define USB_TIMEOUT 500 461bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 471bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* Frequency limits in MHz */ 481bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#define FREQ_MIN 76U 491bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#define FREQ_MAX 108U 501bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil#define FREQ_MUL 16000U 511bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 521bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* USB Device ID List */ 531bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic struct usb_device_id usb_keene_device_table[] = { 541bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil {USB_DEVICE_AND_INTERFACE_INFO(USB_KEENE_VENDOR, USB_KEENE_PRODUCT, 551bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil USB_CLASS_HID, 0, 0) }, 561bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil { } /* Terminating entry */ 571bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil}; 581bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 591bf20c3a0c616f44359c573b533d06bae960ee45Hans VerkuilMODULE_DEVICE_TABLE(usb, usb_keene_device_table); 601bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 611bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstruct keene_device { 621bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct usb_device *usbdev; 631bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct usb_interface *intf; 641bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct video_device vdev; 651bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_device v4l2_dev; 661bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_ctrl_handler hdl; 671bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct mutex lock; 681bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 691bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil u8 *buffer; 701bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil unsigned curfreq; 711bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil u8 tx; 721bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil u8 pa; 731bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil bool stereo; 741bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil bool muted; 751bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil bool preemph_75_us; 761bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil}; 771bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 781bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic inline struct keene_device *to_keene_dev(struct v4l2_device *v4l2_dev) 791bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 801bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return container_of(v4l2_dev, struct keene_device, v4l2_dev); 811bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 821bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 831bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* Set frequency (if non-0), PA, mute and turn on/off the FM transmitter. */ 841bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int keene_cmd_main(struct keene_device *radio, unsigned freq, bool play) 851bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 861bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil unsigned short freq_send = freq ? (freq - 76 * 16000) / 800 : 0; 871bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil int ret; 881bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 891bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[0] = 0x00; 901bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[1] = 0x50; 911bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[2] = (freq_send >> 8) & 0xff; 921bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[3] = freq_send & 0xff; 931bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[4] = radio->pa; 941bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil /* If bit 4 is set, then tune to the frequency. 951bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil If bit 3 is set, then unmute; if bit 2 is set, then mute. 961bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil If bit 1 is set, then enter idle mode; if bit 0 is set, 971bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil then enter transit mode. 981bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil */ 991bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[5] = (radio->muted ? 4 : 8) | (play ? 1 : 2) | 1001bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil (freq ? 0x10 : 0); 1011bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[6] = 0x00; 1021bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[7] = 0x00; 1031bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1041bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil ret = usb_control_msg(radio->usbdev, usb_sndctrlpipe(radio->usbdev, 0), 1051bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 9, 0x21, 0x200, 2, radio->buffer, BUFFER_LENGTH, USB_TIMEOUT); 1061bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1071bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (ret < 0) { 1081bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil dev_warn(&radio->vdev.dev, "%s failed (%d)\n", __func__, ret); 1091bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return ret; 1101bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil } 1111bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (freq) 1121bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->curfreq = freq; 1131bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return 0; 1141bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 1151bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1161bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* Set TX, stereo and preemphasis mode (50 us vs 75 us). */ 1171bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int keene_cmd_set(struct keene_device *radio) 1181bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 1191bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil int ret; 1201bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1211bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[0] = 0x00; 1221bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[1] = 0x51; 1231bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[2] = radio->tx; 1241bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil /* If bit 0 is set, then transmit mono, otherwise stereo. 1251bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil If bit 2 is set, then enable 75 us preemphasis, otherwise 1261bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil it is 50 us. */ 1271bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[3] = (!radio->stereo) | (radio->preemph_75_us ? 4 : 0); 1281bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[4] = 0x00; 1291bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[5] = 0x00; 1301bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[6] = 0x00; 1311bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer[7] = 0x00; 1321bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1331bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil ret = usb_control_msg(radio->usbdev, usb_sndctrlpipe(radio->usbdev, 0), 1341bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 9, 0x21, 0x200, 2, radio->buffer, BUFFER_LENGTH, USB_TIMEOUT); 1351bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1361bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (ret < 0) { 1371bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil dev_warn(&radio->vdev.dev, "%s failed (%d)\n", __func__, ret); 1381bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return ret; 1391bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil } 1401bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return 0; 1411bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 1421bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1431bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* Handle unplugging the device. 1441bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * We call video_unregister_device in any case. 1451bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * The last function called in this procedure is 1461bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * usb_keene_device_release. 1471bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil */ 1481bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic void usb_keene_disconnect(struct usb_interface *intf) 1491bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 1501bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio = to_keene_dev(usb_get_intfdata(intf)); 1511bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1521bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_device_get(&radio->v4l2_dev); 1531bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil mutex_lock(&radio->lock); 1541bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil usb_set_intfdata(intf, NULL); 1551bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil video_unregister_device(&radio->vdev); 1561bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_device_disconnect(&radio->v4l2_dev); 1571bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil mutex_unlock(&radio->lock); 1581bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_device_put(&radio->v4l2_dev); 1591bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 1601bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1611bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int vidioc_querycap(struct file *file, void *priv, 1621bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_capability *v) 1631bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 1641bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio = video_drvdata(file); 1651bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1661bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil strlcpy(v->driver, "radio-keene", sizeof(v->driver)); 1671bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil strlcpy(v->card, "Keene FM Transmitter", sizeof(v->card)); 1681bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil usb_make_path(radio->usbdev, v->bus_info, sizeof(v->bus_info)); 1691bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v->device_caps = V4L2_CAP_RADIO | V4L2_CAP_MODULATOR; 1701bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS; 1711bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return 0; 1721bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 1731bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1741bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int vidioc_g_modulator(struct file *file, void *priv, 1751bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_modulator *v) 1761bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 1771bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio = video_drvdata(file); 1781bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1791bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (v->index > 0) 1801bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return -EINVAL; 1811bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1821bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil strlcpy(v->name, "FM", sizeof(v->name)); 1831bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v->rangelow = FREQ_MIN * FREQ_MUL; 1841bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v->rangehigh = FREQ_MAX * FREQ_MUL; 1851bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v->txsubchans = radio->stereo ? V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO; 1861bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO; 1871bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return 0; 1881bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 1891bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1901bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int vidioc_s_modulator(struct file *file, void *priv, 1911bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_modulator *v) 1921bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 1931bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio = video_drvdata(file); 1941bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1951bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (v->index > 0) 1961bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return -EINVAL; 1971bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 1981bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->stereo = (v->txsubchans == V4L2_TUNER_SUB_STEREO); 1991bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return keene_cmd_set(radio); 2001bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 2011bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2021bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int vidioc_s_frequency(struct file *file, void *priv, 2031bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_frequency *f) 2041bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 2051bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio = video_drvdata(file); 2061bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2071bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) 2081bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return -EINVAL; 2091bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil f->frequency = clamp(f->frequency, 2101bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil FREQ_MIN * FREQ_MUL, FREQ_MAX * FREQ_MUL); 2111bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return keene_cmd_main(radio, f->frequency, true); 2121bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 2131bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2141bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int vidioc_g_frequency(struct file *file, void *priv, 2151bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_frequency *f) 2161bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 2171bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio = video_drvdata(file); 2181bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2191bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (f->tuner != 0) 2201bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return -EINVAL; 2211bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil f->type = V4L2_TUNER_RADIO; 2221bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil f->frequency = radio->curfreq; 2231bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return 0; 2241bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 2251bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2261bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int keene_s_ctrl(struct v4l2_ctrl *ctrl) 2271bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 2281bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil static const u8 db2tx[] = { 2291bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil /* -15, -12, -9, -6, -3, 0 dB */ 2301bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 0x03, 0x13, 0x02, 0x12, 0x22, 0x32, 2311bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil /* 3, 6, 9, 12, 15, 18 dB */ 2321bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 0x21, 0x31, 0x20, 0x30, 0x40, 0x50 2331bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil }; 2341bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio = 2351bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil container_of(ctrl->handler, struct keene_device, hdl); 2361bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2371bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil switch (ctrl->id) { 2381bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil case V4L2_CID_AUDIO_MUTE: 2391bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->muted = ctrl->val; 2401bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return keene_cmd_main(radio, 0, true); 2411bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2421bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil case V4L2_CID_TUNE_POWER_LEVEL: 2431bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil /* To go from dBuV to the register value we apply the 2441bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil following formula: */ 2451bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->pa = (ctrl->val - 71) * 100 / 62; 2461bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return keene_cmd_main(radio, 0, true); 2471bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2481bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil case V4L2_CID_TUNE_PREEMPHASIS: 2491bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->preemph_75_us = ctrl->val == V4L2_PREEMPHASIS_75_uS; 2501bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return keene_cmd_set(radio); 2511bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2521bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil case V4L2_CID_AUDIO_COMPRESSION_GAIN: 2531bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->tx = db2tx[(ctrl->val - ctrl->minimum) / ctrl->step]; 2541bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return keene_cmd_set(radio); 2551bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil } 2561bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return -EINVAL; 2571bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 2581bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2591bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int vidioc_subscribe_event(struct v4l2_fh *fh, 2601bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_event_subscription *sub) 2611bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 2621bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil switch (sub->type) { 2631bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil case V4L2_EVENT_CTRL: 2641bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return v4l2_event_subscribe(fh, sub, 0); 2651bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil default: 2661bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return -EINVAL; 2671bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil } 2681bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 2691bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2701bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2711bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* File system interface */ 2721bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic const struct v4l2_file_operations usb_keene_fops = { 2731bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .owner = THIS_MODULE, 2741bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .open = v4l2_fh_open, 2751bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .release = v4l2_fh_release, 2761bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .poll = v4l2_ctrl_poll, 2771bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .unlocked_ioctl = video_ioctl2, 2781bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil}; 2791bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2801bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic const struct v4l2_ctrl_ops keene_ctrl_ops = { 2811bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .s_ctrl = keene_s_ctrl, 2821bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil}; 2831bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2841bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic const struct v4l2_ioctl_ops usb_keene_ioctl_ops = { 2851bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .vidioc_querycap = vidioc_querycap, 2861bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .vidioc_g_modulator = vidioc_g_modulator, 2871bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .vidioc_s_modulator = vidioc_s_modulator, 2881bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .vidioc_g_frequency = vidioc_g_frequency, 2891bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .vidioc_s_frequency = vidioc_s_frequency, 2901bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .vidioc_log_status = v4l2_ctrl_log_status, 2911bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .vidioc_subscribe_event = vidioc_subscribe_event, 2921bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 2931bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil}; 2941bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2951bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic void usb_keene_video_device_release(struct v4l2_device *v4l2_dev) 2961bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 2971bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio = to_keene_dev(v4l2_dev); 2981bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 2991bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil /* free rest memory */ 3001bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_ctrl_handler_free(&radio->hdl); 3011bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil kfree(radio->buffer); 3021bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil kfree(radio); 3031bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 3041bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3051bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* check if the device is present and register with v4l and usb if it is */ 3061bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int usb_keene_probe(struct usb_interface *intf, 3071bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil const struct usb_device_id *id) 3081bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 3091bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct usb_device *dev = interface_to_usbdev(intf); 3101bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct keene_device *radio; 3111bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil struct v4l2_ctrl_handler *hdl; 3121bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil int retval = 0; 3131bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3141bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil /* 3151bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * The Keene FM transmitter USB device has the same USB ID as 3161bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * the Logitech AudioHub Speaker, but it should ignore the hid. 3171bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * Check if the name is that of the Keene device. 3181bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * If not, then someone connected the AudioHub and we shouldn't 3191bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * attempt to handle this driver. 3201bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * For reference: the product name of the AudioHub is 3211bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil * "AudioHub Speaker". 3221bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil */ 3231bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (dev->product && strcmp(dev->product, "B-LINK USB Audio ")) 3241bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return -ENODEV; 3251bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3261bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio = kzalloc(sizeof(struct keene_device), GFP_KERNEL); 3271bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (radio) 3281bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->buffer = kmalloc(BUFFER_LENGTH, GFP_KERNEL); 3291bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3301bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (!radio || !radio->buffer) { 3311bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil dev_err(&intf->dev, "kmalloc for keene_device failed\n"); 3321bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil kfree(radio); 3331bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil retval = -ENOMEM; 3341bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil goto err; 3351bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil } 3361bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3371bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil hdl = &radio->hdl; 3381bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_ctrl_handler_init(hdl, 4); 3391bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_ctrl_new_std(hdl, &keene_ctrl_ops, V4L2_CID_AUDIO_MUTE, 3401bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 0, 1, 1, 0); 3411bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_ctrl_new_std_menu(hdl, &keene_ctrl_ops, V4L2_CID_TUNE_PREEMPHASIS, 3421bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil V4L2_PREEMPHASIS_75_uS, 1, V4L2_PREEMPHASIS_50_uS); 3431bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_ctrl_new_std(hdl, &keene_ctrl_ops, V4L2_CID_TUNE_POWER_LEVEL, 3441bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 84, 118, 1, 118); 3451bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_ctrl_new_std(hdl, &keene_ctrl_ops, V4L2_CID_AUDIO_COMPRESSION_GAIN, 3461bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil -15, 18, 3, 0); 3471bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->pa = 118; 3481bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->tx = 0x32; 3491bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->stereo = true; 3501bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->curfreq = 95.16 * FREQ_MUL; 3511bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (hdl->error) { 3521bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil retval = hdl->error; 3531bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3541bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_ctrl_handler_free(hdl); 3551bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil goto err_v4l2; 3561bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil } 3571bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil retval = v4l2_device_register(&intf->dev, &radio->v4l2_dev); 3581bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (retval < 0) { 3591bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil dev_err(&intf->dev, "couldn't register v4l2_device\n"); 3601bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil goto err_v4l2; 3611bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil } 3621bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3631bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil mutex_init(&radio->lock); 3641bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3651bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->v4l2_dev.ctrl_handler = hdl; 3661bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->v4l2_dev.release = usb_keene_video_device_release; 3671bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil strlcpy(radio->vdev.name, radio->v4l2_dev.name, 3681bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil sizeof(radio->vdev.name)); 3691bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->vdev.v4l2_dev = &radio->v4l2_dev; 3701bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->vdev.fops = &usb_keene_fops; 3711bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->vdev.ioctl_ops = &usb_keene_ioctl_ops; 3721bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->vdev.lock = &radio->lock; 3731bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->vdev.release = video_device_release_empty; 3741bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3751bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->usbdev = interface_to_usbdev(intf); 3761bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil radio->intf = intf; 3771bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil usb_set_intfdata(intf, &radio->v4l2_dev); 3781bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3791bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil video_set_drvdata(&radio->vdev, radio); 3801bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil set_bit(V4L2_FL_USE_FH_PRIO, &radio->vdev.flags); 3811bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3821bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil retval = video_register_device(&radio->vdev, VFL_TYPE_RADIO, -1); 3831bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (retval < 0) { 3841bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil dev_err(&intf->dev, "could not register video device\n"); 3851bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil goto err_vdev; 3861bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil } 3871bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_ctrl_handler_setup(hdl); 3881bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil dev_info(&intf->dev, "V4L2 device registered as %s\n", 3891bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil video_device_node_name(&radio->vdev)); 3901bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return 0; 3911bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 3921bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilerr_vdev: 3931bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil v4l2_device_unregister(&radio->v4l2_dev); 3941bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilerr_v4l2: 3951bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil kfree(radio->buffer); 3961bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil kfree(radio); 3971bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilerr: 3981bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return retval; 3991bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 4001bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 4011bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil/* USB subsystem interface */ 4021bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic struct usb_driver usb_keene_driver = { 4031bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .name = "radio-keene", 4041bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .probe = usb_keene_probe, 4051bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .disconnect = usb_keene_disconnect, 4061bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil .id_table = usb_keene_device_table, 4071bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil}; 4081bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 4091bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic int __init keene_init(void) 4101bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 4111bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil int retval = usb_register(&usb_keene_driver); 4121bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 4131bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil if (retval) 4141bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil pr_err(KBUILD_MODNAME 4151bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil ": usb_register failed. Error number %d\n", retval); 4161bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 4171bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil return retval; 4181bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 4191bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 4201bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilstatic void __exit keene_exit(void) 4211bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil{ 4221bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil usb_deregister(&usb_keene_driver); 4231bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil} 4241bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 4251bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilmodule_init(keene_init); 4261bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuilmodule_exit(keene_exit); 4271bf20c3a0c616f44359c573b533d06bae960ee45Hans Verkuil 428