diff options
Diffstat (limited to 'drivers/staging/lirc/lirc_streamzap.c')
| -rw-r--r-- | drivers/staging/lirc/lirc_streamzap.c | 821 |
1 files changed, 0 insertions, 821 deletions
diff --git a/drivers/staging/lirc/lirc_streamzap.c b/drivers/staging/lirc/lirc_streamzap.c deleted file mode 100644 index be09c103f0c9..000000000000 --- a/drivers/staging/lirc/lirc_streamzap.c +++ /dev/null @@ -1,821 +0,0 @@ -/* - * Streamzap Remote Control driver - * - * Copyright (c) 2005 Christoph Bartelmus <lirc@bartelmus.de> - * - * This driver was based on the work of Greg Wickham and Adrian - * Dewhurst. It was substantially rewritten to support correct signal - * gaps and now maintains a delay buffer, which is used to present - * consistent timing behaviour to user space applications. Without the - * delay buffer an ugly hack would be required in lircd, which can - * cause sluggish signal decoding in certain situations. - * - * This driver is based on the USB skeleton driver packaged with the - * kernel; copyright (C) 2001-2003 Greg Kroah-Hartman (greg@kroah.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/smp_lock.h> -#include <linux/completion.h> -#include <linux/uaccess.h> -#include <linux/usb.h> - -#include <media/lirc.h> -#include <media/lirc_dev.h> - -#define DRIVER_VERSION "1.28" -#define DRIVER_NAME "lirc_streamzap" -#define DRIVER_DESC "Streamzap Remote Control driver" - -static int debug; - -#define USB_STREAMZAP_VENDOR_ID 0x0e9c -#define USB_STREAMZAP_PRODUCT_ID 0x0000 - -/* Use our own dbg macro */ -#define dprintk(fmt, args...) \ - do { \ - if (debug) \ - printk(KERN_DEBUG DRIVER_NAME "[%d]: " \ - fmt "\n", ## args); \ - } while (0) - -/* table of devices that work with this driver */ -static struct usb_device_id streamzap_table[] = { - /* Streamzap Remote Control */ - { USB_DEVICE(USB_STREAMZAP_VENDOR_ID, USB_STREAMZAP_PRODUCT_ID) }, - /* Terminating entry */ - { } -}; - -MODULE_DEVICE_TABLE(usb, streamzap_table); - -#define STREAMZAP_PULSE_MASK 0xf0 -#define STREAMZAP_SPACE_MASK 0x0f -#define STREAMZAP_TIMEOUT 0xff -#define STREAMZAP_RESOLUTION 256 - -/* number of samples buffered */ -#define STREAMZAP_BUF_LEN 128 - -enum StreamzapDecoderState { - PulseSpace, - FullPulse, - FullSpace, - IgnorePulse -}; - -/* Structure to hold all of our device specific stuff - * - * some remarks regarding locking: - * theoretically this struct can be accessed from three threads: - * - * - from lirc_dev through set_use_inc/set_use_dec - * - * - from the USB layer throuh probe/disconnect/irq - * - * Careful placement of lirc_register_driver/lirc_unregister_driver - * calls will prevent conflicts. lirc_dev makes sure that - * set_use_inc/set_use_dec are not being executed and will not be - * called after lirc_unregister_driver returns. - * - * - by the timer callback - * - * The timer is only running when the device is connected and the - * LIRC device is open. Making sure the timer is deleted by - * set_use_dec will make conflicts impossible. - */ -struct usb_streamzap { - - /* usb */ - /* save off the usb device pointer */ - struct usb_device *udev; - /* the interface for this device */ - struct usb_interface *interface; - - /* buffer & dma */ - unsigned char *buf_in; - dma_addr_t dma_in; - unsigned int buf_in_len; - - struct usb_endpoint_descriptor *endpoint; - - /* IRQ */ - struct urb *urb_in; - - /* lirc */ - struct lirc_driver *driver; - struct lirc_buffer *delay_buf; - - /* timer used to support delay buffering */ - struct timer_list delay_timer; - int timer_running; - spinlock_t timer_lock; - - /* tracks whether we are currently receiving some signal */ - int idle; - /* sum of signal lengths received since signal start */ - unsigned long sum; - /* start time of signal; necessary for gap tracking */ - struct timeval signal_last; - struct timeval signal_start; - enum StreamzapDecoderState decoder_state; - struct timer_list flush_timer; - int flush; - int in_use; - int timeout_enabled; -}; - - -/* local function prototypes */ -static int streamzap_probe(struct usb_interface *interface, - const struct usb_device_id *id); -static void streamzap_disconnect(struct usb_interface *interface); -static void usb_streamzap_irq(struct urb *urb); -static int streamzap_use_inc(void *data); -static void streamzap_use_dec(void *data); -static long streamzap_ioctl(struct file *filep, unsigned int cmd, - unsigned long arg); -static int streamzap_suspend(struct usb_interface *intf, pm_message_t message); -static int streamzap_resume(struct usb_interface *intf); - -/* usb specific object needed to register this driver with the usb subsystem */ - -static struct usb_driver streamzap_driver = { - .name = DRIVER_NAME, - .probe = streamzap_probe, - .disconnect = streamzap_disconnect, - .suspend = streamzap_suspend, - .resume = streamzap_resume, - .id_table = streamzap_table, -}; - -static void stop_timer(struct usb_streamzap *sz) -{ - unsigned long flags; - - spin_lock_irqsave(&sz->timer_lock, flags); - if (sz->timer_running) { - sz->timer_running = 0; - spin_unlock_irqrestore(&sz->timer_lock, flags); - del_timer_sync(&sz->delay_timer); - } else { - spin_unlock_irqrestore(&sz->timer_lock, flags); - } -} - -static void flush_timeout(unsigned long arg) -{ - struct usb_streamzap *sz = (struct usb_streamzap *) arg; - - /* finally start accepting data */ - sz->flush = 0; -} -static void delay_timeout(unsigned long arg) -{ - unsigned long flags; - /* deliver data every 10 ms */ - static unsigned long timer_inc = - (10000/(1000000/HZ)) == 0 ? 1 : (10000/(1000000/HZ)); - struct usb_streamzap *sz = (struct usb_streamzap *) arg; - int data; - - spin_lock_irqsave(&sz->timer_lock, flags); - - if (!lirc_buffer_empty(sz->delay_buf) && - !lirc_buffer_full(sz->driver->rbuf)) { - lirc_buffer_read(sz->delay_buf, (unsigned char *) &data); - lirc_buffer_write(sz->driver->rbuf, (unsigned char *) &data); - } - if (!lirc_buffer_empty(sz->delay_buf)) { - while (lirc_buffer_available(sz->delay_buf) < - STREAMZAP_BUF_LEN / 2 && - !lirc_buffer_full(sz->driver->rbuf)) { - lirc_buffer_read(sz->delay_buf, - (unsigned char *) &data); - lirc_buffer_write(sz->driver->rbuf, - (unsigned char *) &data); - } - if (sz->timer_running) { - sz->delay_timer.expires = jiffies + timer_inc; - add_timer(&sz->delay_timer); - } - } else { - sz->timer_running = 0; - } - - if (!lirc_buffer_empty(sz->driver->rbuf)) - wake_up(&sz->driver->rbuf->wait_poll); - - spin_unlock_irqrestore(&sz->timer_lock, flags); -} - -static void flush_delay_buffer(struct usb_streamzap *sz) -{ - int data; - int empty = 1; - - while (!lirc_buffer_empty(sz->delay_buf)) { - empty = 0; - lirc_buffer_read(sz->delay_buf, (unsigned char *) &data); - if (!lirc_buffer_full(sz->driver->rbuf)) { - lirc_buffer_write(sz->driver->rbuf, - (unsigned char *) &data); - } else { - dprintk("buffer overflow", sz->driver->minor); - } - } - if (!empty) - wake_up(&sz->driver->rbuf->wait_poll); -} - -static void push(struct usb_streamzap *sz, unsigned char *data) -{ - unsigned long flags; - - spin_lock_irqsave(&sz->timer_lock, flags); - if (lirc_buffer_full(sz->delay_buf)) { - int read_data; - - lirc_buffer_read(sz->delay_buf, - (unsigned char *) &read_data); - if (!lirc_buffer_full(sz->driver->rbuf)) { - lirc_buffer_write(sz->driver->rbuf, - (unsigned char *) &read_data); - } else { - dprintk("buffer overflow", sz->driver->minor); - } - } - - lirc_buffer_write(sz->delay_buf, data); - - if (!sz->timer_running) { - sz->delay_timer.expires = jiffies + HZ/10; - add_timer(&sz->delay_timer); - sz->timer_running = 1; - } - - spin_unlock_irqrestore(&sz->timer_lock, flags); -} - -static void push_full_pulse(struct usb_streamzap *sz, - unsigned char value) -{ - int pulse; - - if (sz->idle) { - long deltv; - int tmp; - - sz->signal_last = sz->signal_start; - do_gettimeofday(&sz->signal_start); - - deltv = sz->signal_start.tv_sec-sz->signal_last.tv_sec; - if (deltv > 15) { - /* really long time */ - tmp = LIRC_SPACE(LIRC_VALUE_MASK); - } else { - tmp = (int) (deltv*1000000+ - sz->signal_start.tv_usec - - sz->signal_last.tv_usec); - tmp -= sz->sum; - tmp = LIRC_SPACE(tmp); - } - dprintk("ls %u", sz->driver->minor, tmp); - push(sz, (char *)&tmp); - - sz->idle = 0; - sz->sum = 0; - } - - pulse = ((int) value) * STREAMZAP_RESOLUTION; - pulse += STREAMZAP_RESOLUTION / 2; - sz->sum += pulse; - pulse = LIRC_PULSE(pulse); - - dprintk("p %u", sz->driver->minor, pulse & PULSE_MASK); - push(sz, (char *)&pulse); -} - -static void push_half_pulse(struct usb_streamzap *sz, - unsigned char value) -{ - push_full_pulse(sz, (value & STREAMZAP_PULSE_MASK)>>4); -} - -static void push_full_space(struct usb_streamzap *sz, - unsigned char value) -{ - int space; - - space = ((int) value)*STREAMZAP_RESOLUTION; - space += STREAMZAP_RESOLUTION/2; - sz->sum += space; - space = LIRC_SPACE(space); - dprintk("s %u", sz->driver->minor, space); - push(sz, (char *)&space); -} - -static void push_half_space(struct usb_streamzap *sz, - unsigned char value) -{ - push_full_space(sz, value & STREAMZAP_SPACE_MASK); -} - -/** - * usb_streamzap_irq - IRQ handler - * - * This procedure is invoked on reception of data from - * the usb remote. - */ -static void usb_streamzap_irq(struct urb *urb) -{ - struct usb_streamzap *sz; - int len; - unsigned int i = 0; - - if (!urb) - return; - - sz = urb->context; - len = urb->actual_length; - - switch (urb->status) { - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* - * this urb is terminated, clean up. - * sz might already be invalid at this point - */ - dprintk("urb status: %d", -1, urb->status); - return; - default: - break; - } - - dprintk("received %d", sz->driver->minor, urb->actual_length); - if (!sz->flush) { - for (i = 0; i < urb->actual_length; i++) { - dprintk("%d: %x", sz->driver->minor, - i, (unsigned char) sz->buf_in[i]); - switch (sz->decoder_state) { - case PulseSpace: - if ((sz->buf_in[i]&STREAMZAP_PULSE_MASK) == - STREAMZAP_PULSE_MASK) { - sz->decoder_state = FullPulse; - continue; - } else if ((sz->buf_in[i]&STREAMZAP_SPACE_MASK) - == STREAMZAP_SPACE_MASK) { - push_half_pulse(sz, sz->buf_in[i]); - sz->decoder_state = FullSpace; - continue; - } else { - push_half_pulse(sz, sz->buf_in[i]); - push_half_space(sz, sz->buf_in[i]); - } - break; - case FullPulse: - push_full_pulse(sz, sz->buf_in[i]); - sz->decoder_state = IgnorePulse; - break; - case FullSpace: - if (sz->buf_in[i] == STREAMZAP_TIMEOUT) { - sz->idle = 1; - stop_timer(sz); - if (sz->timeout_enabled) { - int timeout = - LIRC_TIMEOUT - (STREAMZAP_TIMEOUT * - STREAMZAP_RESOLUTION); - push(sz, (char *)&timeout); - } - flush_delay_buffer(sz); - } else - push_full_space(sz, sz->buf_in[i]); - sz->decoder_state = PulseSpace; - break; - case IgnorePulse: - if ((sz->buf_in[i]&STREAMZAP_SPACE_MASK) == - STREAMZAP_SPACE_MASK) { - sz->decoder_state = FullSpace; - continue; - } - push_half_space(sz, sz->buf_in[i]); - sz->decoder_state = PulseSpace; - break; - } - } - } - - usb_submit_urb(urb, GFP_ATOMIC); - - return; -} - -static const struct file_operations streamzap_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = streamzap_ioctl, - .read = lirc_dev_fop_read, - .write = lirc_dev_fop_write, - .poll = lirc_dev_fop_poll, - .open = lirc_dev_fop_open, - .release = lirc_dev_fop_close, -}; - - -/** - * streamzap_probe - * - * Called by usb-core to associated with a candidate device - * On any failure the return value is the ERROR - * On success return 0 - */ -static int streamzap_probe(struct usb_interface *interface, - const struct usb_device_id *id) -{ - struct usb_device *udev = interface_to_usbdev(interface); - struct usb_host_interface *iface_host; - struct usb_streamzap *sz; - struct lirc_driver *driver; - struct lirc_buffer *lirc_buf; - struct lirc_buffer *delay_buf; - char buf[63], name[128] = ""; - int retval = -ENOMEM; - int minor = 0; - - /* Allocate space for device driver specific data */ - sz = kzalloc(sizeof(struct usb_streamzap), GFP_KERNEL); - if (sz == NULL) - return -ENOMEM; - - sz->udev = udev; - sz->interface = interface; - - /* Check to ensure endpoint information matches requirements */ - iface_host = interface->cur_altsetting; - - if (iface_host->desc.bNumEndpoints != 1) { - err("%s: Unexpected desc.bNumEndpoints (%d)", __func__, - iface_host->desc.bNumEndpoints); - retval = -ENODEV; - goto free_sz; - } - - sz->endpoint = &(iface_host->endpoint[0].desc); - if ((sz->endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) - != USB_DIR_IN) { - err("%s: endpoint doesn't match input device 02%02x", - __func__, sz->endpoint->bEndpointAddress); - retval = -ENODEV; - goto free_sz; - } - - if ((sz->endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - != USB_ENDPOINT_XFER_INT) { - err("%s: endpoint attributes don't match xfer 02%02x", - __func__, sz->endpoint->bmAttributes); - retval = -ENODEV; - goto free_sz; - } - - if (sz->endpoint->wMaxPacketSize == 0) { - err("%s: endpoint message size==0? ", __func__); - retval = -ENODEV; - goto free_sz; - } - - /* Allocate the USB buffer and IRQ URB */ - - sz->buf_in_len = sz->endpoint->wMaxPacketSize; - sz->buf_in = usb_alloc_coherent(sz->udev, sz->buf_in_len, - GFP_ATOMIC, &sz->dma_in); - if (sz->buf_in == NULL) - goto free_sz; - - sz->urb_in = usb_alloc_urb(0, GFP_KERNEL); - if (sz->urb_in == NULL) - goto free_sz; - - /* Connect this device to the LIRC sub-system */ - driver = kzalloc(sizeof(struct lirc_driver), GFP_KERNEL); - if (!driver) - goto free_sz; - - lirc_buf = kmalloc(sizeof(struct lirc_buffer), GFP_KERNEL); - if (!lirc_buf) - goto free_driver; - if (lirc_buffer_init(lirc_buf, sizeof(int), STREAMZAP_BUF_LEN)) - goto kfree_lirc_buf; - - delay_buf = kmalloc(sizeof(struct lirc_buffer), GFP_KERNEL); - if (!delay_buf) - goto free_lirc_buf; - if (lirc_buffer_init(delay_buf, sizeof(int), STREAMZAP_BUF_LEN)) - goto kfree_delay_buf; - - sz->driver = driver; - strcpy(sz->driver->name, DRIVER_NAME); - sz->driver->minor = -1; - sz->driver->sample_rate = 0; - sz->driver->code_length = sizeof(int) * 8; - sz->driver->features = LIRC_CAN_REC_MODE2 | - LIRC_CAN_GET_REC_RESOLUTION | - LIRC_CAN_SET_REC_TIMEOUT; - sz->driver->data = sz; - sz->driver->min_timeout = STREAMZAP_TIMEOUT * STREAMZAP_RESOLUTION; - sz->driver->max_timeout = STREAMZAP_TIMEOUT * STREAMZAP_RESOLUTION; - sz->driver->rbuf = lirc_buf; - sz->delay_buf = delay_buf; - sz->driver->set_use_inc = &streamzap_use_inc; - sz->driver->set_use_dec = &streamzap_use_dec; - sz->driver->fops = &streamzap_fops; - sz->driver->dev = &interface->dev; - sz->driver->owner = THIS_MODULE; - - sz->idle = 1; - sz->decoder_state = PulseSpace; - init_timer(&sz->delay_timer); - sz->delay_timer.function = delay_timeout; - sz->delay_timer.data = (unsigned long) sz; - sz->timer_running = 0; - spin_lock_init(&sz->timer_lock); - - init_timer(&sz->flush_timer); - sz->flush_timer.function = flush_timeout; - sz->flush_timer.data = (unsigned long) sz; - /* Complete final initialisations */ - - usb_fill_int_urb(sz->urb_in, udev, - usb_rcvintpipe(udev, sz->endpoint->bEndpointAddress), - sz->buf_in, sz->buf_in_len, usb_streamzap_irq, sz, - sz->endpoint->bInterval); - sz->urb_in->transfer_dma = sz->dma_in; - sz->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - - if (udev->descriptor.iManufacturer - && usb_string(udev, udev->descriptor.iManufacturer, - buf, sizeof(buf)) > 0) - strlcpy(name, buf, sizeof(name)); - - if (udev->descriptor.iProduct - && usb_string(udev, udev->descriptor.iProduct, - buf, sizeof(buf)) > 0) - snprintf(name + strlen(name), sizeof(name) - strlen(name), - " %s", buf); - - minor = lirc_register_driver(driver); - - if (minor < 0) - goto free_delay_buf; - - sz->driver->minor = minor; - - usb_set_intfdata(interface, sz); - - printk(KERN_INFO DRIVER_NAME "[%d]: %s on usb%d:%d attached\n", - sz->driver->minor, name, - udev->bus->busnum, sz->udev->devnum); - - return 0; - -free_delay_buf: - lirc_buffer_free(sz->delay_buf); -kfree_delay_buf: - kfree(delay_buf); -free_lirc_buf: - lirc_buffer_free(sz->driver->rbuf); -kfree_lirc_buf: - kfree(lirc_buf); -free_driver: - kfree(driver); -free_sz: - if (retval == -ENOMEM) - err("Out of memory"); - - if (sz) { - usb_free_urb(sz->urb_in); - usb_free_coherent(udev, sz->buf_in_len, sz->buf_in, sz->dma_in); - kfree(sz); - } - - return retval; -} - -static int streamzap_use_inc(void *data) -{ - struct usb_streamzap *sz = data; - - if (!sz) { - dprintk("%s called with no context", -1, __func__); - return -EINVAL; - } - dprintk("set use inc", sz->driver->minor); - - lirc_buffer_clear(sz->driver->rbuf); - lirc_buffer_clear(sz->delay_buf); - - sz->flush_timer.expires = jiffies + HZ; - sz->flush = 1; - add_timer(&sz->flush_timer); - - sz->urb_in->dev = sz->udev; - if (usb_submit_urb(sz->urb_in, GFP_ATOMIC)) { - dprintk("open result = -EIO error submitting urb", - sz->driver->minor); - return -EIO; - } - sz->in_use++; - - return 0; -} - -static void streamzap_use_dec(void *data) -{ - struct usb_streamzap *sz = data; - - if (!sz) { - dprintk("%s called with no context", -1, __func__); - return; - } - dprintk("set use dec", sz->driver->minor); - - if (sz->flush) { - sz->flush = 0; - del_timer_sync(&sz->flush_timer); - } - - usb_kill_urb(sz->urb_in); - - stop_timer(sz); - - sz->in_use--; -} - -static long streamzap_ioctl(struct file *filep, unsigned int cmd, - unsigned long arg) -{ - int result = 0; - int val; - struct usb_streamzap *sz = lirc_get_pdata(filep); - - switch (cmd) { - case LIRC_GET_REC_RESOLUTION: - result = put_user(STREAMZAP_RESOLUTION, (unsigned int *) arg); - break; - case LIRC_SET_REC_TIMEOUT: - result = get_user(val, (int *)arg); - if (result == 0) { - if (val == STREAMZAP_TIMEOUT * STREAMZAP_RESOLUTION) - sz->timeout_enabled = 1; - else if (val == 0) - sz->timeout_enabled = 0; - else - result = -EINVAL; - } - break; - default: - return lirc_dev_fop_ioctl(filep, cmd, arg); - } - return result; -} - -/** - * streamzap_disconnect - * - * Called by the usb core when the device is removed from the system. - * - * This routine guarantees that the driver will not submit any more urbs - * by clearing dev->udev. It is also supposed to terminate any currently - * active urbs. Unfortunately, usb_bulk_msg(), used in streamzap_read(), - * does not provide any way to do this. - */ -static void streamzap_disconnect(struct usb_interface *interface) -{ - struct usb_streamzap *sz; - int errnum; - int minor; - - sz = usb_get_intfdata(interface); - - /* unregister from the LIRC sub-system */ - - errnum = lirc_unregister_driver(sz->driver->minor); - if (errnum != 0) - dprintk("error in lirc_unregister: (returned %d)", - sz->driver->minor, errnum); - - lirc_buffer_free(sz->delay_buf); - lirc_buffer_free(sz->driver->rbuf); - - /* unregister from the USB sub-system */ - - usb_free_urb(sz->urb_in); - - usb_free_coherent(sz->udev, sz->buf_in_len, sz->buf_in, sz->dma_in); - - minor = sz->driver->minor; - kfree(sz->driver->rbuf); - kfree(sz->driver); - kfree(sz->delay_buf); - kfree(sz); - - printk(KERN_INFO DRIVER_NAME "[%d]: disconnected\n", minor); -} - -static int streamzap_suspend(struct usb_interface *intf, pm_message_t message) -{ - struct usb_streamzap *sz = usb_get_intfdata(intf); - - printk(KERN_INFO DRIVER_NAME "[%d]: suspend\n", sz->driver->minor); - if (sz->in_use) { - if (sz->flush) { - sz->flush = 0; - del_timer_sync(&sz->flush_timer); - } - - stop_timer(sz); - - usb_kill_urb(sz->urb_in); - } - return 0; -} - -static int streamzap_resume(struct usb_interface *intf) -{ - struct usb_streamzap *sz = usb_get_intfdata(intf); - - lirc_buffer_clear(sz->driver->rbuf); - lirc_buffer_clear(sz->delay_buf); - - if (sz->in_use) { - sz->flush_timer.expires = jiffies + HZ; - sz->flush = 1; - add_timer(&sz->flush_timer); - - sz->urb_in->dev = sz->udev; - if (usb_submit_urb(sz->urb_in, GFP_ATOMIC)) { - dprintk("open result = -EIO error submitting urb", - sz->driver->minor); - return -EIO; - } - } - return 0; -} - -/** - * usb_streamzap_init - */ -static int __init usb_streamzap_init(void) -{ - int result; - - /* register this driver with the USB subsystem */ - result = usb_register(&streamzap_driver); - - if (result) { - err("usb_register failed. Error number %d", - result); - return result; - } - - printk(KERN_INFO DRIVER_NAME " " DRIVER_VERSION " registered\n"); - return 0; -} - -/** - * usb_streamzap_exit - */ -static void __exit usb_streamzap_exit(void) -{ - usb_deregister(&streamzap_driver); -} - - -module_init(usb_streamzap_init); -module_exit(usb_streamzap_exit); - -MODULE_AUTHOR("Christoph Bartelmus, Greg Wickham, Adrian Dewhurst"); -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE("GPL"); - -module_param(debug, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Enable debugging messages"); |