diff options
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 146 | ||||
-rw-r--r-- | drivers/usb/serial/ftdi_sio.h | 14 | ||||
-rw-r--r-- | drivers/usb/serial/option.c | 228 |
3 files changed, 175 insertions, 213 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 0b03ddab53d..d1964a0c416 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -429,6 +429,9 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) }, + { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, { } /* Terminating entry */ }; @@ -545,6 +548,7 @@ static struct usb_serial_device_type ftdi_sio_device = { #define WDR_TIMEOUT 5000 /* default urb timeout */ +#define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ /* High and low are for DTR, RTS etc etc */ #define HIGH 1 @@ -593,62 +597,59 @@ static __u32 ftdi_232bm_baud_to_divisor(int baud) return(ftdi_232bm_baud_base_to_divisor(baud, 48000000)); } -static int set_rts(struct usb_serial_port *port, int high_or_low) +#define set_mctrl(port, set) update_mctrl((port), (set), 0) +#define clear_mctrl(port, clear) update_mctrl((port), 0, (clear)) + +static int update_mctrl(struct usb_serial_port *port, unsigned int set, unsigned int clear) { struct ftdi_private *priv = usb_get_serial_port_data(port); char *buf; - unsigned ftdi_high_or_low; + unsigned urb_value; int rv; - - buf = kmalloc(1, GFP_NOIO); - if (!buf) - return -ENOMEM; - - if (high_or_low) { - ftdi_high_or_low = FTDI_SIO_SET_RTS_HIGH; - priv->last_dtr_rts |= TIOCM_RTS; - } else { - ftdi_high_or_low = FTDI_SIO_SET_RTS_LOW; - priv->last_dtr_rts &= ~TIOCM_RTS; - } - rv = usb_control_msg(port->serial->dev, - usb_sndctrlpipe(port->serial->dev, 0), - FTDI_SIO_SET_MODEM_CTRL_REQUEST, - FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, - ftdi_high_or_low, priv->interface, - buf, 0, WDR_TIMEOUT); - - kfree(buf); - return rv; -} + if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { + dbg("%s - DTR|RTS not being set|cleared", __FUNCTION__); + return 0; /* no change */ + } -static int set_dtr(struct usb_serial_port *port, int high_or_low) -{ - struct ftdi_private *priv = usb_get_serial_port_data(port); - char *buf; - unsigned ftdi_high_or_low; - int rv; - buf = kmalloc(1, GFP_NOIO); - if (!buf) + if (!buf) { return -ENOMEM; - - if (high_or_low) { - ftdi_high_or_low = FTDI_SIO_SET_DTR_HIGH; - priv->last_dtr_rts |= TIOCM_DTR; - } else { - ftdi_high_or_low = FTDI_SIO_SET_DTR_LOW; - priv->last_dtr_rts &= ~TIOCM_DTR; } + + clear &= ~set; /* 'set' takes precedence over 'clear' */ + urb_value = 0; + if (clear & TIOCM_DTR) + urb_value |= FTDI_SIO_SET_DTR_LOW; + if (clear & TIOCM_RTS) + urb_value |= FTDI_SIO_SET_RTS_LOW; + if (set & TIOCM_DTR) + urb_value |= FTDI_SIO_SET_DTR_HIGH; + if (set & TIOCM_RTS) + urb_value |= FTDI_SIO_SET_RTS_HIGH; rv = usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0), FTDI_SIO_SET_MODEM_CTRL_REQUEST, FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, - ftdi_high_or_low, priv->interface, + urb_value, priv->interface, buf, 0, WDR_TIMEOUT); kfree(buf); + if (rv < 0) { + err("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", + __FUNCTION__, + (set & TIOCM_DTR) ? "HIGH" : + (clear & TIOCM_DTR) ? "LOW" : "unchanged", + (set & TIOCM_RTS) ? "HIGH" : + (clear & TIOCM_RTS) ? "LOW" : "unchanged"); + } else { + dbg("%s - DTR %s, RTS %s", __FUNCTION__, + (set & TIOCM_DTR) ? "HIGH" : + (clear & TIOCM_DTR) ? "LOW" : "unchanged", + (set & TIOCM_RTS) ? "HIGH" : + (clear & TIOCM_RTS) ? "LOW" : "unchanged"); + priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; + } return rv; } @@ -681,7 +682,7 @@ static int change_speed(struct usb_serial_port *port) FTDI_SIO_SET_BAUDRATE_REQUEST, FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, urb_value, urb_index, - buf, 0, 100); + buf, 0, WDR_SHORT_TIMEOUT); kfree(buf); return rv; @@ -1219,12 +1220,7 @@ static int ftdi_open (struct usb_serial_port *port, struct file *filp) /* FIXME: Flow control might be enabled, so it should be checked - we have no control of defaults! */ /* Turn on RTS and DTR since we are not flow controlling by default */ - if (set_dtr(port, HIGH) < 0) { - err("%s Error from DTR HIGH urb", __FUNCTION__); - } - if (set_rts(port, HIGH) < 0){ - err("%s Error from RTS HIGH urb", __FUNCTION__); - } + set_mctrl(port, TIOCM_DTR | TIOCM_RTS); /* Not throttled */ spin_lock_irqsave(&priv->rx_lock, flags); @@ -1274,14 +1270,8 @@ static void ftdi_close (struct usb_serial_port *port, struct file *filp) err("error from flowcontrol urb"); } - /* drop DTR */ - if (set_dtr(port, LOW) < 0){ - err("Error from DTR LOW urb"); - } - /* drop RTS */ - if (set_rts(port, LOW) < 0) { - err("Error from RTS LOW urb"); - } + /* drop RTS and DTR */ + clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } /* Note change no line if hupcl is off */ /* cancel any scheduled reading */ @@ -1797,7 +1787,7 @@ static void ftdi_set_termios (struct usb_serial_port *port, struct termios *old_ FTDI_SIO_SET_DATA_REQUEST, FTDI_SIO_SET_DATA_REQUEST_TYPE, urb_value , priv->interface, - buf, 0, 100) < 0) { + buf, 0, WDR_SHORT_TIMEOUT) < 0) { err("%s FAILED to set databits/stopbits/parity", __FUNCTION__); } @@ -1812,25 +1802,14 @@ static void ftdi_set_termios (struct usb_serial_port *port, struct termios *old_ err("%s error from disable flowcontrol urb", __FUNCTION__); } /* Drop RTS and DTR */ - if (set_dtr(port, LOW) < 0){ - err("%s Error from DTR LOW urb", __FUNCTION__); - } - if (set_rts(port, LOW) < 0){ - err("%s Error from RTS LOW urb", __FUNCTION__); - } - + clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } else { /* set the baudrate determined before */ if (change_speed(port)) { err("%s urb failed to set baurdrate", __FUNCTION__); } /* Ensure RTS and DTR are raised */ - else if (set_dtr(port, HIGH) < 0){ - err("%s Error from DTR HIGH urb", __FUNCTION__); - } - else if (set_rts(port, HIGH) < 0){ - err("%s Error from RTS HIGH urb", __FUNCTION__); - } + set_mctrl(port, TIOCM_DTR | TIOCM_RTS); } /* Set flow control */ @@ -1942,35 +1921,8 @@ static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file) static int ftdi_tiocmset(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear) { - int ret; - dbg("%s TIOCMSET", __FUNCTION__); - if (set & TIOCM_DTR){ - if ((ret = set_dtr(port, HIGH)) < 0) { - err("Urb to set DTR failed"); - return(ret); - } - } - if (set & TIOCM_RTS) { - if ((ret = set_rts(port, HIGH)) < 0){ - err("Urb to set RTS failed"); - return(ret); - } - } - - if (clear & TIOCM_DTR){ - if ((ret = set_dtr(port, LOW)) < 0){ - err("Urb to unset DTR failed"); - return(ret); - } - } - if (clear & TIOCM_RTS) { - if ((ret = set_rts(port, LOW)) < 0){ - err("Urb to unset RTS failed"); - return(ret); - } - } - return(0); + return update_mctrl(port, set, clear); } diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index 8866376823a..9f4342093e8 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -265,10 +265,24 @@ #define MOBILITY_USB_SERIAL_PID 0x0202 /* EasiDock USB 200 serial */ /* + * microHAM product IDs (http://www.microham.com). + * Submitted by Justin Burket (KL1RL) <zorton@jtan.com>. + */ +#define FTDI_MHAM_Y6_PID 0xEEEA /* USB-Y6 interface */ +#define FTDI_MHAM_Y8_PID 0xEEEB /* USB-Y8 interface */ + +/* * Active Robots product ids. */ #define FTDI_ACTIVE_ROBOTS_PID 0xE548 /* USB comms board */ +/* + * Evolution Robotics products (http://www.evolution.com/). + * Submitted by Shawn M. Lavelle. + */ +#define EVOLUTION_VID 0xDEEE /* Vendor ID */ +#define EVOLUTION_ER1_PID 0x0300 /* ER1 Control Module */ + /* Commands */ #define FTDI_SIO_RESET 0 /* Reset the port */ #define FTDI_SIO_MODEM_CTRL 1 /* Set the modem control register */ diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index b722175f108..e9256408757 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -12,14 +12,25 @@ History: 2005-05-19 v0.1 Initial version, based on incomplete docs - and analysis of misbehavior of the standard driver + and analysis of misbehavior with the standard driver 2005-05-20 v0.2 Extended the input buffer to avoid losing random 64-byte chunks of data 2005-05-21 v0.3 implemented chars_in_buffer() turned on low_latency simplified the code somewhat + 2005-05-24 v0.4 option_write() sometimes deadlocked under heavy load + removed some dead code + added sponsor notice + coding style clean-up + 2005-06-20 v0.4.1 add missing braces :-/ + killed end-of-line whitespace + 2005-07-15 v0.4.2 rename WLAN product to FUSION, add FUSION2 + + Work sponsored by: Sigos GmbH, Germany <info@sigos.de> + */ -#define DRIVER_VERSION "v0.3" + +#define DRIVER_VERSION "v0.4" #define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>" #define DRIVER_DESC "Option Card (PC-Card to) USB to Serial Driver" @@ -44,7 +55,6 @@ static int option_write_room (struct usb_serial_port *port); static void option_instat_callback(struct urb *urb, struct pt_regs *regs); - static int option_write (struct usb_serial_port *port, const unsigned char *buf, int count); @@ -60,14 +70,17 @@ static int option_tiocmset (struct usb_serial_port *port, struct file *file, static int option_send_setup (struct usb_serial_port *port); /* Vendor and product IDs */ -#define OPTION_VENDOR_ID 0x0AF0 +#define OPTION_VENDOR_ID 0x0AF0 + +#define OPTION_PRODUCT_OLD 0x5000 +#define OPTION_PRODUCT_FUSION 0x6000 +#define OPTION_PRODUCT_FUSION2 0x6300 -#define OPTION_PRODUCT_OLD 0x5000 -#define OPTION_PRODUCT_WLAN 0x6000 static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) }, - { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_WLAN) }, + { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) }, + { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) }, { } /* Terminating entry */ }; @@ -85,58 +98,62 @@ static struct usb_driver option_driver = { * recognizes separately, thus num_port=1. */ static struct usb_serial_device_type option_3port_device = { - .owner = THIS_MODULE, - .name = "Option 3-port card", - .short_name = "option", - .id_table = option_ids, - .num_interrupt_in = NUM_DONT_CARE, - .num_bulk_in = NUM_DONT_CARE, - .num_bulk_out = NUM_DONT_CARE, - .num_ports = 1, /* 3 */ - .open = option_open, - .close = option_close, - .write = option_write, - .write_room = option_write_room, - .chars_in_buffer = option_chars_in_buffer, - .throttle = option_rx_throttle, - .unthrottle = option_rx_unthrottle, - .ioctl = option_ioctl, - .set_termios = option_set_termios, - .break_ctl = option_break_ctl, - .tiocmget = option_tiocmget, - .tiocmset = option_tiocmset, - .attach = option_startup, - .shutdown = option_shutdown, - .read_int_callback = option_instat_callback, + .owner = THIS_MODULE, + .name = "Option 3G data card", + .short_name = "option", + .id_table = option_ids, + .num_interrupt_in = NUM_DONT_CARE, + .num_bulk_in = NUM_DONT_CARE, + .num_bulk_out = NUM_DONT_CARE, + .num_ports = 1, /* 3, but the card reports its ports separately */ + .open = option_open, + .close = option_close, + .write = option_write, + .write_room = option_write_room, + .chars_in_buffer = option_chars_in_buffer, + .throttle = option_rx_throttle, + .unthrottle = option_rx_unthrottle, + .ioctl = option_ioctl, + .set_termios = option_set_termios, + .break_ctl = option_break_ctl, + .tiocmget = option_tiocmget, + .tiocmset = option_tiocmset, + .attach = option_startup, + .shutdown = option_shutdown, + .read_int_callback = option_instat_callback, }; +#ifdef CONFIG_USB_DEBUG static int debug; +#else +#define debug 0 +#endif + /* per port private data */ -#define N_IN_URB 4 -#define N_OUT_URB 1 -#define IN_BUFLEN 1024 -#define OUT_BUFLEN 1024 +#define N_IN_URB 4 +#define N_OUT_URB 1 +#define IN_BUFLEN 1024 +#define OUT_BUFLEN 128 struct option_port_private { /* Input endpoints and buffer for this port */ - struct urb *in_urbs[N_IN_URB]; - char in_buffer[N_IN_URB][IN_BUFLEN]; + struct urb *in_urbs[N_IN_URB]; + char in_buffer[N_IN_URB][IN_BUFLEN]; /* Output endpoints and buffer for this port */ - struct urb *out_urbs[N_OUT_URB]; - char out_buffer[N_OUT_URB][OUT_BUFLEN]; + struct urb *out_urbs[N_OUT_URB]; + char out_buffer[N_OUT_URB][OUT_BUFLEN]; /* Settings for the port */ - int rts_state; /* Handshaking pins (outputs) */ - int dtr_state; - int cts_state; /* Handshaking pins (inputs) */ - int dsr_state; - int dcd_state; - int ri_state; - // int break_on; - - unsigned long tx_start_time[N_OUT_URB]; + int rts_state; /* Handshaking pins (outputs) */ + int dtr_state; + int cts_state; /* Handshaking pins (inputs) */ + int dsr_state; + int dcd_state; + int ri_state; + + unsigned long tx_start_time[N_OUT_URB]; }; @@ -190,13 +207,13 @@ static void option_break_ctl (struct usb_serial_port *port, int break_state) { /* Unfortunately, I don't know how to send a break */ - dbg("%s", __FUNCTION__); + dbg("%s", __FUNCTION__); } static void option_set_termios (struct usb_serial_port *port, - struct termios *old_termios) + struct termios *old_termios) { dbg("%s", __FUNCTION__); @@ -204,10 +221,10 @@ option_set_termios (struct usb_serial_port *port, } static int -option_tiocmget(struct usb_serial_port *port, struct file *file) +option_tiocmget (struct usb_serial_port *port, struct file *file) { - unsigned int value; - struct option_port_private *portdata; + unsigned int value; + struct option_port_private *portdata; portdata = usb_get_serial_port_data(port); @@ -225,7 +242,7 @@ static int option_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear) { - struct option_port_private *portdata; + struct option_port_private *portdata; portdata = usb_get_serial_port_data(port); @@ -250,71 +267,50 @@ option_ioctl (struct usb_serial_port *port, struct file *file, /* Write */ static int -option_write(struct usb_serial_port *port, - const unsigned char *buf, int count) +option_write (struct usb_serial_port *port, + const unsigned char *buf, int count) { - struct option_port_private *portdata; - int i; - int left, todo; - struct urb *this_urb = NULL; /* spurious */ - int err; + struct option_port_private *portdata; + int i; + int left, todo; + struct urb *this_urb = NULL; /* spurious */ + int err; portdata = usb_get_serial_port_data(port); dbg("%s: write (%d chars)", __FUNCTION__, count); -#if 0 - spin_lock(&port->lock); - if (port->write_urb_busy) { - spin_unlock(&port->lock); - dbg("%s: already writing", __FUNCTION__); - return 0; - } - port->write_urb_busy = 1; - spin_unlock(&port->lock); -#endif - i = 0; left = count; - while (left>0) { + for (i=0; left > 0 && i < N_OUT_URB; i++) { todo = left; if (todo > OUT_BUFLEN) todo = OUT_BUFLEN; - for (;i < N_OUT_URB; i++) { - /* Check we have a valid urb/endpoint before we use it... */ - this_urb = portdata->out_urbs[i]; - if (this_urb->status != -EINPROGRESS) - break; + this_urb = portdata->out_urbs[i]; + if (this_urb->status == -EINPROGRESS) { if (this_urb->transfer_flags & URB_ASYNC_UNLINK) continue; if (time_before(jiffies, portdata->tx_start_time[i] + 10 * HZ)) continue; this_urb->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(this_urb); + continue; } - - if (i == N_OUT_URB) { - /* no bulk out free! */ - dbg("%s: no output urb -- left %d", __FUNCTION__,count-left); -#if 0 - port->write_urb_busy = 0; -#endif - return count-left; - } + if (this_urb->status != 0) + dbg("usb_write %p failed (err=%d)", this_urb, this_urb->status); dbg("%s: endpoint %d buf %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe), i); + /* send the data */ memcpy (this_urb->transfer_buffer, buf, todo); - - /* send the data out the bulk port */ this_urb->transfer_buffer_length = todo; this_urb->transfer_flags &= ~URB_ASYNC_UNLINK; this_urb->dev = port->serial->dev; err = usb_submit_urb(this_urb, GFP_ATOMIC); if (err) { - dbg("usb_submit_urb %p (write bulk) failed (%d,, has %d)", this_urb, err, this_urb->status); + dbg("usb_submit_urb %p (write bulk) failed (%d, has %d)", this_urb, err, this_urb->status); continue; } portdata->tx_start_time[i] = jiffies; @@ -323,9 +319,6 @@ option_write(struct usb_serial_port *port, } count -= left; -#if 0 - port->write_urb_busy = 0; -#endif dbg("%s: wrote (did %d)", __FUNCTION__, count); return count; } @@ -333,7 +326,7 @@ option_write(struct usb_serial_port *port, static void option_indat_callback (struct urb *urb, struct pt_regs *regs) { - int i, err; + int i, err; int endpoint; struct usb_serial_port *port; struct tty_struct *tty; @@ -444,10 +437,11 @@ option_write_room (struct usb_serial_port *port) portdata = usb_get_serial_port_data(port); - for (i=0; i < N_OUT_URB; i++) + for (i=0; i < N_OUT_URB; i++) { this_urb = portdata->out_urbs[i]; if (this_urb && this_urb->status != -EINPROGRESS) data_len += OUT_BUFLEN; + } dbg("%s: %d", __FUNCTION__, data_len); return data_len; @@ -464,11 +458,11 @@ option_chars_in_buffer (struct usb_serial_port *port) portdata = usb_get_serial_port_data(port); - for (i=0; i < N_OUT_URB; i++) + for (i=0; i < N_OUT_URB; i++) { this_urb = portdata->out_urbs[i]; if (this_urb && this_urb->status == -EINPROGRESS) data_len += this_urb->transfer_buffer_length; - + } dbg("%s: %d", __FUNCTION__, data_len); return data_len; } @@ -477,10 +471,10 @@ option_chars_in_buffer (struct usb_serial_port *port) static int option_open (struct usb_serial_port *port, struct file *filp) { - struct option_port_private *portdata; - struct usb_serial *serial = port->serial; - int i, err; - struct urb *urb; + struct option_port_private *portdata; + struct usb_serial *serial = port->serial; + int i, err; + struct urb *urb; portdata = usb_get_serial_port_data(port); @@ -528,7 +522,7 @@ option_open (struct usb_serial_port *port, struct file *filp) } static inline void -stop_urb(struct urb *urb) +stop_urb (struct urb *urb) { if (urb && urb->status == -EINPROGRESS) { urb->transfer_flags &= ~URB_ASYNC_UNLINK; @@ -537,11 +531,11 @@ stop_urb(struct urb *urb) } static void -option_close(struct usb_serial_port *port, struct file *filp) +option_close (struct usb_serial_port *port, struct file *filp) { - int i; - struct usb_serial *serial = port->serial; - struct option_port_private *portdata; + int i; + struct usb_serial *serial = port->serial; + struct option_port_private *portdata; dbg("%s", __FUNCTION__); portdata = usb_get_serial_port_data(port); @@ -589,11 +583,11 @@ option_setup_urb (struct usb_serial *serial, int endpoint, /* Setup urbs */ static void -option_setup_urbs(struct usb_serial *serial) +option_setup_urbs (struct usb_serial *serial) { - int j; - struct usb_serial_port *port; - struct option_port_private *portdata; + int j; + struct usb_serial_port *port; + struct option_port_private *portdata; dbg("%s", __FUNCTION__); @@ -617,7 +611,7 @@ option_setup_urbs(struct usb_serial *serial) static int -option_send_setup(struct usb_serial_port *port) +option_send_setup (struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct option_port_private *portdata; @@ -644,9 +638,9 @@ option_send_setup(struct usb_serial_port *port) static int option_startup (struct usb_serial *serial) { - int i, err; - struct usb_serial_port *port; - struct option_port_private *portdata; + int i, err; + struct usb_serial_port *port; + struct option_port_private *portdata; dbg("%s", __FUNCTION__); @@ -677,9 +671,9 @@ option_startup (struct usb_serial *serial) static void option_shutdown (struct usb_serial *serial) { - int i, j; - struct usb_serial_port *port; - struct option_port_private *portdata; + int i, j; + struct usb_serial_port *port; + struct option_port_private *portdata; dbg("%s", __FUNCTION__); @@ -724,6 +718,8 @@ MODULE_DESCRIPTION(DRIVER_DESC); MODULE_VERSION(DRIVER_VERSION); MODULE_LICENSE("GPL"); +#ifdef CONFIG_USB_DEBUG module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug messages"); +#endif |