666 lines
16 KiB
C
666 lines
16 KiB
C
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/*
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USB Driver layer for GSM modems
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Copyright (C) 2005 Matthias Urlichs <smurf@smurf.noris.de>
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This driver is free software; you can redistribute it and/or modify
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it under the terms of Version 2 of the GNU General Public License as
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published by the Free Software Foundation.
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Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
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History: see the git log.
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Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
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This driver exists because the "normal" serial driver doesn't work too well
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with GSM modems. Issues:
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- data loss -- one single Receive URB is not nearly enough
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- controlling the baud rate doesn't make sense
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*/
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#define DRIVER_VERSION "v0.7.2"
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#define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
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#define DRIVER_DESC "USB Driver for GSM modems"
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#include <linux/kernel.h>
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#include <linux/jiffies.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/tty.h>
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#include <linux/tty_flip.h>
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#include <linux/module.h>
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#include <linux/bitops.h>
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#include <linux/usb.h>
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#include <linux/usb/serial.h>
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#include "usb-wwan.h"
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static int debug;
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void usb_wwan_dtr_rts(struct usb_serial_port *port, int on)
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{
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struct usb_serial *serial = port->serial;
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struct usb_wwan_port_private *portdata;
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struct usb_wwan_intf_private *intfdata;
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dbg("%s", __func__);
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intfdata = port->serial->private;
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if (!intfdata->send_setup)
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return;
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portdata = usb_get_serial_port_data(port);
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mutex_lock(&serial->disc_mutex);
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portdata->rts_state = on;
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portdata->dtr_state = on;
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if (serial->dev)
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intfdata->send_setup(port);
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mutex_unlock(&serial->disc_mutex);
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}
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EXPORT_SYMBOL(usb_wwan_dtr_rts);
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void usb_wwan_set_termios(struct tty_struct *tty,
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struct usb_serial_port *port,
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struct ktermios *old_termios)
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{
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struct usb_wwan_intf_private *intfdata = port->serial->private;
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dbg("%s", __func__);
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/* Doesn't support option setting */
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tty_termios_copy_hw(tty->termios, old_termios);
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if (intfdata->send_setup)
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intfdata->send_setup(port);
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}
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EXPORT_SYMBOL(usb_wwan_set_termios);
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int usb_wwan_tiocmget(struct tty_struct *tty, struct file *file)
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{
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struct usb_serial_port *port = tty->driver_data;
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unsigned int value;
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struct usb_wwan_port_private *portdata;
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portdata = usb_get_serial_port_data(port);
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value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
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((portdata->dtr_state) ? TIOCM_DTR : 0) |
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((portdata->cts_state) ? TIOCM_CTS : 0) |
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((portdata->dsr_state) ? TIOCM_DSR : 0) |
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((portdata->dcd_state) ? TIOCM_CAR : 0) |
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((portdata->ri_state) ? TIOCM_RNG : 0);
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return value;
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}
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EXPORT_SYMBOL(usb_wwan_tiocmget);
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int usb_wwan_tiocmset(struct tty_struct *tty, struct file *file,
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unsigned int set, unsigned int clear)
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{
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struct usb_serial_port *port = tty->driver_data;
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struct usb_wwan_port_private *portdata;
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struct usb_wwan_intf_private *intfdata;
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portdata = usb_get_serial_port_data(port);
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intfdata = port->serial->private;
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if (!intfdata->send_setup)
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return -EINVAL;
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/* FIXME: what locks portdata fields ? */
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if (set & TIOCM_RTS)
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portdata->rts_state = 1;
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if (set & TIOCM_DTR)
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portdata->dtr_state = 1;
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if (clear & TIOCM_RTS)
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portdata->rts_state = 0;
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if (clear & TIOCM_DTR)
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portdata->dtr_state = 0;
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return intfdata->send_setup(port);
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}
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EXPORT_SYMBOL(usb_wwan_tiocmset);
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/* Write */
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int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
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const unsigned char *buf, int count)
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{
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struct usb_wwan_port_private *portdata;
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struct usb_wwan_intf_private *intfdata;
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int i;
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int left, todo;
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struct urb *this_urb = NULL; /* spurious */
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int err;
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unsigned long flags;
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portdata = usb_get_serial_port_data(port);
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intfdata = port->serial->private;
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dbg("%s: write (%d chars)", __func__, count);
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i = 0;
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left = count;
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for (i = 0; left > 0 && i < N_OUT_URB; i++) {
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todo = left;
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if (todo > OUT_BUFLEN)
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todo = OUT_BUFLEN;
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this_urb = portdata->out_urbs[i];
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if (test_and_set_bit(i, &portdata->out_busy)) {
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if (time_before(jiffies,
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portdata->tx_start_time[i] + 10 * HZ))
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continue;
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usb_unlink_urb(this_urb);
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continue;
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}
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dbg("%s: endpoint %d buf %d", __func__,
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usb_pipeendpoint(this_urb->pipe), i);
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err = usb_autopm_get_interface_async(port->serial->interface);
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if (err < 0)
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break;
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/* send the data */
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memcpy(this_urb->transfer_buffer, buf, todo);
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this_urb->transfer_buffer_length = todo;
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spin_lock_irqsave(&intfdata->susp_lock, flags);
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if (intfdata->suspended) {
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usb_anchor_urb(this_urb, &portdata->delayed);
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spin_unlock_irqrestore(&intfdata->susp_lock, flags);
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} else {
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intfdata->in_flight++;
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spin_unlock_irqrestore(&intfdata->susp_lock, flags);
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err = usb_submit_urb(this_urb, GFP_ATOMIC);
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if (err) {
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dbg("usb_submit_urb %p (write bulk) failed "
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"(%d)", this_urb, err);
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clear_bit(i, &portdata->out_busy);
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spin_lock_irqsave(&intfdata->susp_lock, flags);
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intfdata->in_flight--;
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spin_unlock_irqrestore(&intfdata->susp_lock,
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flags);
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continue;
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}
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}
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portdata->tx_start_time[i] = jiffies;
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buf += todo;
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left -= todo;
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}
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count -= left;
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dbg("%s: wrote (did %d)", __func__, count);
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return count;
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}
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EXPORT_SYMBOL(usb_wwan_write);
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static void usb_wwan_indat_callback(struct urb *urb)
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{
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int err;
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int endpoint;
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struct usb_serial_port *port;
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struct tty_struct *tty;
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unsigned char *data = urb->transfer_buffer;
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int status = urb->status;
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dbg("%s: %p", __func__, urb);
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endpoint = usb_pipeendpoint(urb->pipe);
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port = urb->context;
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if (status) {
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dbg("%s: nonzero status: %d on endpoint %02x.",
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__func__, status, endpoint);
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} else {
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tty = tty_port_tty_get(&port->port);
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if (urb->actual_length) {
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tty_insert_flip_string(tty, data, urb->actual_length);
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tty_flip_buffer_push(tty);
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} else
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dbg("%s: empty read urb received", __func__);
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tty_kref_put(tty);
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/* Resubmit urb so we continue receiving */
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if (status != -ESHUTDOWN) {
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err && err != -EPERM)
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printk(KERN_ERR "%s: resubmit read urb failed. "
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"(%d)", __func__, err);
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else
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usb_mark_last_busy(port->serial->dev);
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}
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}
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return;
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}
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static void usb_wwan_outdat_callback(struct urb *urb)
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{
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struct usb_serial_port *port;
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struct usb_wwan_port_private *portdata;
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struct usb_wwan_intf_private *intfdata;
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int i;
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dbg("%s", __func__);
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port = urb->context;
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intfdata = port->serial->private;
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usb_serial_port_softint(port);
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usb_autopm_put_interface_async(port->serial->interface);
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portdata = usb_get_serial_port_data(port);
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spin_lock(&intfdata->susp_lock);
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intfdata->in_flight--;
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spin_unlock(&intfdata->susp_lock);
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for (i = 0; i < N_OUT_URB; ++i) {
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if (portdata->out_urbs[i] == urb) {
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smp_mb__before_clear_bit();
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clear_bit(i, &portdata->out_busy);
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break;
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}
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}
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}
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int usb_wwan_write_room(struct tty_struct *tty)
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{
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struct usb_serial_port *port = tty->driver_data;
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struct usb_wwan_port_private *portdata;
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int i;
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int data_len = 0;
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struct urb *this_urb;
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portdata = usb_get_serial_port_data(port);
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for (i = 0; i < N_OUT_URB; i++) {
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this_urb = portdata->out_urbs[i];
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if (this_urb && !test_bit(i, &portdata->out_busy))
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data_len += OUT_BUFLEN;
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}
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dbg("%s: %d", __func__, data_len);
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return data_len;
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}
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EXPORT_SYMBOL(usb_wwan_write_room);
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int usb_wwan_chars_in_buffer(struct tty_struct *tty)
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{
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struct usb_serial_port *port = tty->driver_data;
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struct usb_wwan_port_private *portdata;
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int i;
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int data_len = 0;
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struct urb *this_urb;
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portdata = usb_get_serial_port_data(port);
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for (i = 0; i < N_OUT_URB; i++) {
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this_urb = portdata->out_urbs[i];
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/* FIXME: This locking is insufficient as this_urb may
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go unused during the test */
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if (this_urb && test_bit(i, &portdata->out_busy))
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data_len += this_urb->transfer_buffer_length;
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}
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dbg("%s: %d", __func__, data_len);
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return data_len;
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}
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EXPORT_SYMBOL(usb_wwan_chars_in_buffer);
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int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port)
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{
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struct usb_wwan_port_private *portdata;
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struct usb_wwan_intf_private *intfdata;
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struct usb_serial *serial = port->serial;
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int i, err;
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struct urb *urb;
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portdata = usb_get_serial_port_data(port);
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intfdata = serial->private;
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dbg("%s", __func__);
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/* Start reading from the IN endpoint */
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for (i = 0; i < N_IN_URB; i++) {
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urb = portdata->in_urbs[i];
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if (!urb)
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continue;
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err = usb_submit_urb(urb, GFP_KERNEL);
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if (err) {
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dbg("%s: submit urb %d failed (%d) %d",
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__func__, i, err, urb->transfer_buffer_length);
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}
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}
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if (intfdata->send_setup)
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intfdata->send_setup(port);
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serial->interface->needs_remote_wakeup = 1;
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spin_lock_irq(&intfdata->susp_lock);
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portdata->opened = 1;
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spin_unlock_irq(&intfdata->susp_lock);
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usb_autopm_put_interface(serial->interface);
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return 0;
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}
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EXPORT_SYMBOL(usb_wwan_open);
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void usb_wwan_close(struct usb_serial_port *port)
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{
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int i;
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struct usb_serial *serial = port->serial;
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struct usb_wwan_port_private *portdata;
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struct usb_wwan_intf_private *intfdata = port->serial->private;
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dbg("%s", __func__);
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portdata = usb_get_serial_port_data(port);
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if (serial->dev) {
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/* Stop reading/writing urbs */
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spin_lock_irq(&intfdata->susp_lock);
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portdata->opened = 0;
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spin_unlock_irq(&intfdata->susp_lock);
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for (i = 0; i < N_IN_URB; i++)
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usb_kill_urb(portdata->in_urbs[i]);
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for (i = 0; i < N_OUT_URB; i++)
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usb_kill_urb(portdata->out_urbs[i]);
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usb_autopm_get_interface(serial->interface);
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serial->interface->needs_remote_wakeup = 0;
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}
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}
|
||
|
|
EXPORT_SYMBOL(usb_wwan_close);
|
||
|
|
|
||
|
|
/* Helper functions used by usb_wwan_setup_urbs */
|
||
|
|
static struct urb *usb_wwan_setup_urb(struct usb_serial *serial, int endpoint,
|
||
|
|
int dir, void *ctx, char *buf, int len,
|
||
|
|
void (*callback) (struct urb *))
|
||
|
|
{
|
||
|
|
struct urb *urb;
|
||
|
|
|
||
|
|
if (endpoint == -1)
|
||
|
|
return NULL; /* endpoint not needed */
|
||
|
|
|
||
|
|
urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
|
||
|
|
if (urb == NULL) {
|
||
|
|
dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Fill URB using supplied data. */
|
||
|
|
usb_fill_bulk_urb(urb, serial->dev,
|
||
|
|
usb_sndbulkpipe(serial->dev, endpoint) | dir,
|
||
|
|
buf, len, callback, ctx);
|
||
|
|
|
||
|
|
return urb;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Setup urbs */
|
||
|
|
static void usb_wwan_setup_urbs(struct usb_serial *serial)
|
||
|
|
{
|
||
|
|
int i, j;
|
||
|
|
struct usb_serial_port *port;
|
||
|
|
struct usb_wwan_port_private *portdata;
|
||
|
|
|
||
|
|
dbg("%s", __func__);
|
||
|
|
|
||
|
|
for (i = 0; i < serial->num_ports; i++) {
|
||
|
|
port = serial->port[i];
|
||
|
|
portdata = usb_get_serial_port_data(port);
|
||
|
|
|
||
|
|
/* Do indat endpoints first */
|
||
|
|
for (j = 0; j < N_IN_URB; ++j) {
|
||
|
|
portdata->in_urbs[j] = usb_wwan_setup_urb(serial,
|
||
|
|
port->
|
||
|
|
bulk_in_endpointAddress,
|
||
|
|
USB_DIR_IN,
|
||
|
|
port,
|
||
|
|
portdata->
|
||
|
|
in_buffer[j],
|
||
|
|
IN_BUFLEN,
|
||
|
|
usb_wwan_indat_callback);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* outdat endpoints */
|
||
|
|
for (j = 0; j < N_OUT_URB; ++j) {
|
||
|
|
portdata->out_urbs[j] = usb_wwan_setup_urb(serial,
|
||
|
|
port->
|
||
|
|
bulk_out_endpointAddress,
|
||
|
|
USB_DIR_OUT,
|
||
|
|
port,
|
||
|
|
portdata->
|
||
|
|
out_buffer
|
||
|
|
[j],
|
||
|
|
OUT_BUFLEN,
|
||
|
|
usb_wwan_outdat_callback);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int usb_wwan_startup(struct usb_serial *serial)
|
||
|
|
{
|
||
|
|
int i, j, err;
|
||
|
|
struct usb_serial_port *port;
|
||
|
|
struct usb_wwan_port_private *portdata;
|
||
|
|
u8 *buffer;
|
||
|
|
|
||
|
|
dbg("%s", __func__);
|
||
|
|
|
||
|
|
/* Now setup per port private data */
|
||
|
|
for (i = 0; i < serial->num_ports; i++) {
|
||
|
|
port = serial->port[i];
|
||
|
|
portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
|
||
|
|
if (!portdata) {
|
||
|
|
dbg("%s: kmalloc for usb_wwan_port_private (%d) failed!.",
|
||
|
|
__func__, i);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
init_usb_anchor(&portdata->delayed);
|
||
|
|
|
||
|
|
for (j = 0; j < N_IN_URB; j++) {
|
||
|
|
buffer = (u8 *) __get_free_page(GFP_KERNEL);
|
||
|
|
if (!buffer)
|
||
|
|
goto bail_out_error;
|
||
|
|
portdata->in_buffer[j] = buffer;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (j = 0; j < N_OUT_URB; j++) {
|
||
|
|
buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
|
||
|
|
if (!buffer)
|
||
|
|
goto bail_out_error2;
|
||
|
|
portdata->out_buffer[j] = buffer;
|
||
|
|
}
|
||
|
|
|
||
|
|
usb_set_serial_port_data(port, portdata);
|
||
|
|
|
||
|
|
if (!port->interrupt_in_urb)
|
||
|
|
continue;
|
||
|
|
err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
|
||
|
|
if (err)
|
||
|
|
dbg("%s: submit irq_in urb failed %d", __func__, err);
|
||
|
|
}
|
||
|
|
usb_wwan_setup_urbs(serial);
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
bail_out_error2:
|
||
|
|
for (j = 0; j < N_OUT_URB; j++)
|
||
|
|
kfree(portdata->out_buffer[j]);
|
||
|
|
bail_out_error:
|
||
|
|
for (j = 0; j < N_IN_URB; j++)
|
||
|
|
if (portdata->in_buffer[j])
|
||
|
|
free_page((unsigned long)portdata->in_buffer[j]);
|
||
|
|
kfree(portdata);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(usb_wwan_startup);
|
||
|
|
|
||
|
|
static void stop_read_write_urbs(struct usb_serial *serial)
|
||
|
|
{
|
||
|
|
int i, j;
|
||
|
|
struct usb_serial_port *port;
|
||
|
|
struct usb_wwan_port_private *portdata;
|
||
|
|
|
||
|
|
/* Stop reading/writing urbs */
|
||
|
|
for (i = 0; i < serial->num_ports; ++i) {
|
||
|
|
port = serial->port[i];
|
||
|
|
portdata = usb_get_serial_port_data(port);
|
||
|
|
for (j = 0; j < N_IN_URB; j++)
|
||
|
|
usb_kill_urb(portdata->in_urbs[j]);
|
||
|
|
for (j = 0; j < N_OUT_URB; j++)
|
||
|
|
usb_kill_urb(portdata->out_urbs[j]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void usb_wwan_disconnect(struct usb_serial *serial)
|
||
|
|
{
|
||
|
|
dbg("%s", __func__);
|
||
|
|
|
||
|
|
stop_read_write_urbs(serial);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(usb_wwan_disconnect);
|
||
|
|
|
||
|
|
void usb_wwan_release(struct usb_serial *serial)
|
||
|
|
{
|
||
|
|
int i, j;
|
||
|
|
struct usb_serial_port *port;
|
||
|
|
struct usb_wwan_port_private *portdata;
|
||
|
|
|
||
|
|
dbg("%s", __func__);
|
||
|
|
|
||
|
|
/* Now free them */
|
||
|
|
for (i = 0; i < serial->num_ports; ++i) {
|
||
|
|
port = serial->port[i];
|
||
|
|
portdata = usb_get_serial_port_data(port);
|
||
|
|
|
||
|
|
for (j = 0; j < N_IN_URB; j++) {
|
||
|
|
usb_free_urb(portdata->in_urbs[j]);
|
||
|
|
free_page((unsigned long)
|
||
|
|
portdata->in_buffer[j]);
|
||
|
|
portdata->in_urbs[j] = NULL;
|
||
|
|
}
|
||
|
|
for (j = 0; j < N_OUT_URB; j++) {
|
||
|
|
usb_free_urb(portdata->out_urbs[j]);
|
||
|
|
kfree(portdata->out_buffer[j]);
|
||
|
|
portdata->out_urbs[j] = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Now free per port private data */
|
||
|
|
for (i = 0; i < serial->num_ports; i++) {
|
||
|
|
port = serial->port[i];
|
||
|
|
kfree(usb_get_serial_port_data(port));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(usb_wwan_release);
|
||
|
|
|
||
|
|
#ifdef CONFIG_PM
|
||
|
|
int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message)
|
||
|
|
{
|
||
|
|
struct usb_wwan_intf_private *intfdata = serial->private;
|
||
|
|
int b;
|
||
|
|
|
||
|
|
dbg("%s entered", __func__);
|
||
|
|
|
||
|
|
if (message.event & PM_EVENT_AUTO) {
|
||
|
|
spin_lock_irq(&intfdata->susp_lock);
|
||
|
|
b = intfdata->in_flight;
|
||
|
|
spin_unlock_irq(&intfdata->susp_lock);
|
||
|
|
|
||
|
|
if (b)
|
||
|
|
return -EBUSY;
|
||
|
|
}
|
||
|
|
|
||
|
|
spin_lock_irq(&intfdata->susp_lock);
|
||
|
|
intfdata->suspended = 1;
|
||
|
|
spin_unlock_irq(&intfdata->susp_lock);
|
||
|
|
stop_read_write_urbs(serial);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(usb_wwan_suspend);
|
||
|
|
|
||
|
|
static void play_delayed(struct usb_serial_port *port)
|
||
|
|
{
|
||
|
|
struct usb_wwan_intf_private *data;
|
||
|
|
struct usb_wwan_port_private *portdata;
|
||
|
|
struct urb *urb;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
portdata = usb_get_serial_port_data(port);
|
||
|
|
data = port->serial->private;
|
||
|
|
while ((urb = usb_get_from_anchor(&portdata->delayed))) {
|
||
|
|
err = usb_submit_urb(urb, GFP_ATOMIC);
|
||
|
|
if (!err)
|
||
|
|
data->in_flight++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int usb_wwan_resume(struct usb_serial *serial)
|
||
|
|
{
|
||
|
|
int i, j;
|
||
|
|
struct usb_serial_port *port;
|
||
|
|
struct usb_wwan_intf_private *intfdata = serial->private;
|
||
|
|
struct usb_wwan_port_private *portdata;
|
||
|
|
struct urb *urb;
|
||
|
|
int err = 0;
|
||
|
|
|
||
|
|
dbg("%s entered", __func__);
|
||
|
|
/* get the interrupt URBs resubmitted unconditionally */
|
||
|
|
for (i = 0; i < serial->num_ports; i++) {
|
||
|
|
port = serial->port[i];
|
||
|
|
if (!port->interrupt_in_urb) {
|
||
|
|
dbg("%s: No interrupt URB for port %d", __func__, i);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
|
||
|
|
dbg("Submitted interrupt URB for port %d (result %d)", i, err);
|
||
|
|
if (err < 0) {
|
||
|
|
err("%s: Error %d for interrupt URB of port%d",
|
||
|
|
__func__, err, i);
|
||
|
|
goto err_out;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0; i < serial->num_ports; i++) {
|
||
|
|
/* walk all ports */
|
||
|
|
port = serial->port[i];
|
||
|
|
portdata = usb_get_serial_port_data(port);
|
||
|
|
|
||
|
|
/* skip closed ports */
|
||
|
|
spin_lock_irq(&intfdata->susp_lock);
|
||
|
|
if (!portdata->opened) {
|
||
|
|
spin_unlock_irq(&intfdata->susp_lock);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (j = 0; j < N_IN_URB; j++) {
|
||
|
|
urb = portdata->in_urbs[j];
|
||
|
|
err = usb_submit_urb(urb, GFP_ATOMIC);
|
||
|
|
if (err < 0) {
|
||
|
|
err("%s: Error %d for bulk URB %d",
|
||
|
|
__func__, err, i);
|
||
|
|
spin_unlock_irq(&intfdata->susp_lock);
|
||
|
|
goto err_out;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
play_delayed(port);
|
||
|
|
spin_unlock_irq(&intfdata->susp_lock);
|
||
|
|
}
|
||
|
|
spin_lock_irq(&intfdata->susp_lock);
|
||
|
|
intfdata->suspended = 0;
|
||
|
|
spin_unlock_irq(&intfdata->susp_lock);
|
||
|
|
err_out:
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(usb_wwan_resume);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
||
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
||
|
|
MODULE_VERSION(DRIVER_VERSION);
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
|
||
|
|
module_param(debug, bool, S_IRUGO | S_IWUSR);
|
||
|
|
MODULE_PARM_DESC(debug, "Debug messages");
|