2 USB Driver for Sierra Wireless
4 Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@sierrawireless.com>
6 IMPORTANT DISCLAIMER: This driver is not commercially supported by
7 Sierra Wireless. Use at your own risk.
9 This driver is free software; you can redistribute it and/or modify
10 it under the terms of Version 2 of the GNU General Public License as
11 published by the Free Software Foundation.
13 Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de>
14 Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
17 #define DRIVER_VERSION "v.1.2.9c"
18 #define DRIVER_AUTHOR "Kevin Lloyd <klloyd@sierrawireless.com>"
19 #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
21 #include <linux/kernel.h>
22 #include <linux/jiffies.h>
23 #include <linux/errno.h>
24 #include <linux/tty.h>
25 #include <linux/tty_flip.h>
26 #include <linux/module.h>
27 #include <linux/usb.h>
28 #include <linux/usb/serial.h>
29 #include <linux/usb/ch9.h>
31 #define SWIMS_USB_REQUEST_SetPower 0x00
32 #define SWIMS_USB_REQUEST_SetNmea 0x07
33 #define SWIMS_USB_REQUEST_SetMode 0x0B
34 #define SWIMS_SET_MODE_Modem 0x0001
36 /* per port private data */
39 #define IN_BUFLEN 4096
43 static int truinstall
= 1;
51 static int sierra_set_power_state(struct usb_device
*udev
, __u16 swiState
)
54 dev_dbg(&udev
->dev
, "%s", "SET POWER STATE\n");
55 result
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0),
56 SWIMS_USB_REQUEST_SetPower
, /* __u8 request */
57 USB_TYPE_VENDOR
, /* __u8 request type */
58 swiState
, /* __u16 value */
60 NULL
, /* void *data */
62 USB_CTRL_SET_TIMEOUT
); /* int timeout */
66 static int sierra_set_ms_mode(struct usb_device
*udev
, __u16 eSWocMode
)
69 dev_dbg(&udev
->dev
, "%s", "DEVICE MODE SWITCH\n");
70 result
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0),
71 SWIMS_USB_REQUEST_SetMode
, /* __u8 request */
72 USB_TYPE_VENDOR
, /* __u8 request type */
73 eSWocMode
, /* __u16 value */
74 0x0000, /* __u16 index */
75 NULL
, /* void *data */
77 USB_CTRL_SET_TIMEOUT
); /* int timeout */
81 static int sierra_vsc_set_nmea(struct usb_device
*udev
, __u16 enable
)
84 dev_dbg(&udev
->dev
, "%s", "NMEA Enable sent\n");
85 result
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0),
86 SWIMS_USB_REQUEST_SetNmea
, /* __u8 request */
87 USB_TYPE_VENDOR
, /* __u8 request type */
88 enable
, /* __u16 value */
89 0x0000, /* __u16 index */
90 NULL
, /* void *data */
92 USB_CTRL_SET_TIMEOUT
); /* int timeout */
96 static int sierra_calc_num_ports(struct usb_serial
*serial
)
99 int *num_ports
= usb_get_serial_data(serial
);
105 usb_set_serial_data(serial
, NULL
);
111 static int sierra_calc_interface(struct usb_serial
*serial
)
114 struct usb_interface
*p_interface
;
115 struct usb_host_interface
*p_host_interface
;
117 /* Get the interface structure pointer from the serial struct */
118 p_interface
= serial
->interface
;
120 /* Get a pointer to the host interface structure */
121 p_host_interface
= p_interface
->cur_altsetting
;
123 /* read the interface descriptor for this active altsetting
124 * to find out the interface number we are on
126 interface
= p_host_interface
->desc
.bInterfaceNumber
;
131 static int sierra_probe(struct usb_serial
*serial
,
132 const struct usb_device_id
*id
)
135 struct usb_device
*udev
;
139 num_ports
= kmalloc(sizeof(*num_ports
), GFP_KERNEL
);
143 ifnum
= serial
->interface
->cur_altsetting
->desc
.bInterfaceNumber
;
146 /* Figure out the interface number from the serial structure */
147 ifnum
= sierra_calc_interface(serial
);
150 * If this interface supports more than 1 alternate
153 if (serial
->interface
->num_altsetting
== 2) {
155 "Selecting alt setting for interface %d\n",
158 /* We know the alternate setting is 1 for the MC8785 */
159 usb_set_interface(udev
, ifnum
, 1);
162 /* Check if in installer mode */
163 if (truinstall
&& id
->driver_info
== DEVICE_INSTALLER
) {
164 dev_dbg(&udev
->dev
, "%s", "FOUND TRU-INSTALL DEVICE(SW)\n");
165 result
= sierra_set_ms_mode(udev
, SWIMS_SET_MODE_Modem
);
166 /* Don't bind to the device when in installer mode */
169 } else if (id
->driver_info
== DEVICE_1_PORT
)
171 else if (ifnum
== 0x99)
176 * save off our num_ports info so that we can use it in the
177 * calc_num_ports callback
179 usb_set_serial_data(serial
, (void *)num_ports
);
184 static struct usb_device_id id_table
[] = {
185 { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
186 { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
187 { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
188 { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
189 { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
190 { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
191 { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
192 { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
193 { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
194 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, /* Sierra Wireless C597 */
196 { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
197 { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
198 { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
199 { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
200 { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */
201 { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */
202 { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */
203 { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
204 { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */
205 { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
206 { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
207 { USB_DEVICE(0x1199, 0x683B), .driver_info
= DEVICE_1_PORT
}, /* Sierra Wireless MC8785 Composite*/
208 { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
209 { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
210 { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
211 { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
212 { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */
213 { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */
214 { USB_DEVICE(0x1199, 0x6859), .driver_info
= DEVICE_1_PORT
}, /* Sierra Wireless AirCard 885 E */
215 { USB_DEVICE(0x1199, 0x685A), .driver_info
= DEVICE_1_PORT
}, /* Sierra Wireless AirCard 885 E */
217 { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */
218 { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */
220 { USB_DEVICE(0x1199, 0x0112), .driver_info
= DEVICE_1_PORT
}, /* Sierra Wireless AirCard 580 */
221 { USB_DEVICE(0x0F3D, 0x0112), .driver_info
= DEVICE_1_PORT
}, /* Airprime/Sierra PC 5220 */
223 { USB_DEVICE(0x1199, 0x0FFF), .driver_info
= DEVICE_INSTALLER
},
226 MODULE_DEVICE_TABLE(usb
, id_table
);
228 static struct usb_driver sierra_driver
= {
230 .probe
= usb_serial_probe
,
231 .disconnect
= usb_serial_disconnect
,
232 .id_table
= id_table
,
236 struct sierra_port_private
{
237 spinlock_t lock
; /* lock the structure */
238 int outstanding_urbs
; /* number of out urbs in flight */
240 /* Input endpoints and buffers for this port */
241 struct urb
*in_urbs
[N_IN_URB
];
242 char *in_buffer
[N_IN_URB
];
244 /* Settings for the port */
245 int rts_state
; /* Handshaking pins (outputs) */
247 int cts_state
; /* Handshaking pins (inputs) */
253 static int sierra_send_setup(struct tty_struct
*tty
,
254 struct usb_serial_port
*port
)
256 struct usb_serial
*serial
= port
->serial
;
257 struct sierra_port_private
*portdata
;
262 portdata
= usb_get_serial_port_data(port
);
266 if (portdata
->dtr_state
)
268 if (portdata
->rts_state
)
271 /* Determine which port is targeted */
272 if (port
->bulk_out_endpointAddress
== 2)
274 else if (port
->bulk_out_endpointAddress
== 4)
276 else if (port
->bulk_out_endpointAddress
== 5)
279 return usb_control_msg(serial
->dev
,
280 usb_rcvctrlpipe(serial
->dev
, 0),
281 0x22, 0x21, val
, interface
,
282 NULL
, 0, USB_CTRL_SET_TIMEOUT
);
288 static void sierra_set_termios(struct tty_struct
*tty
,
289 struct usb_serial_port
*port
, struct ktermios
*old_termios
)
292 tty_termios_copy_hw(tty
->termios
, old_termios
);
293 sierra_send_setup(tty
, port
);
296 static int sierra_tiocmget(struct tty_struct
*tty
, struct file
*file
)
298 struct usb_serial_port
*port
= tty
->driver_data
;
300 struct sierra_port_private
*portdata
;
302 portdata
= usb_get_serial_port_data(port
);
304 value
= ((portdata
->rts_state
) ? TIOCM_RTS
: 0) |
305 ((portdata
->dtr_state
) ? TIOCM_DTR
: 0) |
306 ((portdata
->cts_state
) ? TIOCM_CTS
: 0) |
307 ((portdata
->dsr_state
) ? TIOCM_DSR
: 0) |
308 ((portdata
->dcd_state
) ? TIOCM_CAR
: 0) |
309 ((portdata
->ri_state
) ? TIOCM_RNG
: 0);
314 static int sierra_tiocmset(struct tty_struct
*tty
, struct file
*file
,
315 unsigned int set
, unsigned int clear
)
317 struct usb_serial_port
*port
= tty
->driver_data
;
318 struct sierra_port_private
*portdata
;
320 portdata
= usb_get_serial_port_data(port
);
323 portdata
->rts_state
= 1;
325 portdata
->dtr_state
= 1;
327 if (clear
& TIOCM_RTS
)
328 portdata
->rts_state
= 0;
329 if (clear
& TIOCM_DTR
)
330 portdata
->dtr_state
= 0;
331 return sierra_send_setup(tty
, port
);
334 static void sierra_outdat_callback(struct urb
*urb
)
336 struct usb_serial_port
*port
= urb
->context
;
337 struct sierra_port_private
*portdata
= usb_get_serial_port_data(port
);
338 int status
= urb
->status
;
341 dbg("%s - port %d", __func__
, port
->number
);
343 /* free up the transfer buffer, as usb_free_urb() does not do this */
344 kfree(urb
->transfer_buffer
);
347 dbg("%s - nonzero write bulk status received: %d",
350 spin_lock_irqsave(&portdata
->lock
, flags
);
351 --portdata
->outstanding_urbs
;
352 spin_unlock_irqrestore(&portdata
->lock
, flags
);
354 usb_serial_port_softint(port
);
358 static int sierra_write(struct tty_struct
*tty
, struct usb_serial_port
*port
,
359 const unsigned char *buf
, int count
)
361 struct sierra_port_private
*portdata
= usb_get_serial_port_data(port
);
362 struct usb_serial
*serial
= port
->serial
;
364 unsigned char *buffer
;
368 portdata
= usb_get_serial_port_data(port
);
370 dbg("%s: write (%d chars)", __func__
, count
);
372 spin_lock_irqsave(&portdata
->lock
, flags
);
373 if (portdata
->outstanding_urbs
> N_OUT_URB
) {
374 spin_unlock_irqrestore(&portdata
->lock
, flags
);
375 dbg("%s - write limit hit\n", __func__
);
378 portdata
->outstanding_urbs
++;
379 spin_unlock_irqrestore(&portdata
->lock
, flags
);
381 buffer
= kmalloc(count
, GFP_ATOMIC
);
383 dev_err(&port
->dev
, "out of memory\n");
385 goto error_no_buffer
;
388 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
390 dev_err(&port
->dev
, "no more free urbs\n");
395 memcpy(buffer
, buf
, count
);
397 usb_serial_debug_data(debug
, &port
->dev
, __func__
, count
, buffer
);
399 usb_fill_bulk_urb(urb
, serial
->dev
,
400 usb_sndbulkpipe(serial
->dev
,
401 port
->bulk_out_endpointAddress
),
402 buffer
, count
, sierra_outdat_callback
, port
);
404 /* send it down the pipe */
405 status
= usb_submit_urb(urb
, GFP_ATOMIC
);
407 dev_err(&port
->dev
, "%s - usb_submit_urb(write bulk) failed "
408 "with status = %d\n", __func__
, status
);
413 /* we are done with this urb, so let the host driver
414 * really free it when it is finished with it */
423 spin_lock_irqsave(&portdata
->lock
, flags
);
424 --portdata
->outstanding_urbs
;
425 spin_unlock_irqrestore(&portdata
->lock
, flags
);
429 static void sierra_indat_callback(struct urb
*urb
)
433 struct usb_serial_port
*port
;
434 struct tty_struct
*tty
;
435 unsigned char *data
= urb
->transfer_buffer
;
436 int status
= urb
->status
;
438 dbg("%s: %p", __func__
, urb
);
440 endpoint
= usb_pipeendpoint(urb
->pipe
);
444 dbg("%s: nonzero status: %d on endpoint %02x.",
445 __func__
, status
, endpoint
);
447 tty
= port
->port
.tty
;
448 if (urb
->actual_length
) {
449 tty_buffer_request_room(tty
, urb
->actual_length
);
450 tty_insert_flip_string(tty
, data
, urb
->actual_length
);
451 tty_flip_buffer_push(tty
);
453 dbg("%s: empty read urb received", __func__
);
456 /* Resubmit urb so we continue receiving */
457 if (port
->port
.count
&& status
!= -ESHUTDOWN
) {
458 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
460 dev_err(&port
->dev
, "resubmit read urb failed."
467 static void sierra_instat_callback(struct urb
*urb
)
470 int status
= urb
->status
;
471 struct usb_serial_port
*port
= urb
->context
;
472 struct sierra_port_private
*portdata
= usb_get_serial_port_data(port
);
473 struct usb_serial
*serial
= port
->serial
;
476 dbg("%s: urb %p port %p has data %p", __func__
, urb
, port
, portdata
);
479 struct usb_ctrlrequest
*req_pkt
=
480 (struct usb_ctrlrequest
*)urb
->transfer_buffer
;
483 dbg("%s: NULL req_pkt\n", __func__
);
486 if ((req_pkt
->bRequestType
== 0xA1) &&
487 (req_pkt
->bRequest
== 0x20)) {
489 unsigned char signals
= *((unsigned char *)
490 urb
->transfer_buffer
+
491 sizeof(struct usb_ctrlrequest
));
493 dbg("%s: signal x%x", __func__
, signals
);
495 old_dcd_state
= portdata
->dcd_state
;
496 portdata
->cts_state
= 1;
497 portdata
->dcd_state
= ((signals
& 0x01) ? 1 : 0);
498 portdata
->dsr_state
= ((signals
& 0x02) ? 1 : 0);
499 portdata
->ri_state
= ((signals
& 0x08) ? 1 : 0);
501 if (port
->port
.tty
&& !C_CLOCAL(port
->port
.tty
) &&
502 old_dcd_state
&& !portdata
->dcd_state
)
503 tty_hangup(port
->port
.tty
);
505 dbg("%s: type %x req %x", __func__
,
506 req_pkt
->bRequestType
, req_pkt
->bRequest
);
509 dbg("%s: error %d", __func__
, status
);
511 /* Resubmit urb so we continue receiving IRQ data */
512 if (status
!= -ESHUTDOWN
) {
513 urb
->dev
= serial
->dev
;
514 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
516 dbg("%s: resubmit intr urb failed. (%d)",
521 static int sierra_write_room(struct tty_struct
*tty
)
523 struct usb_serial_port
*port
= tty
->driver_data
;
524 struct sierra_port_private
*portdata
= usb_get_serial_port_data(port
);
527 dbg("%s - port %d", __func__
, port
->number
);
529 /* try to give a good number back based on if we have any free urbs at
530 * this point in time */
531 spin_lock_irqsave(&portdata
->lock
, flags
);
532 if (portdata
->outstanding_urbs
> N_OUT_URB
* 2 / 3) {
533 spin_unlock_irqrestore(&portdata
->lock
, flags
);
534 dbg("%s - write limit hit\n", __func__
);
537 spin_unlock_irqrestore(&portdata
->lock
, flags
);
542 static int sierra_open(struct tty_struct
*tty
,
543 struct usb_serial_port
*port
, struct file
*filp
)
545 struct sierra_port_private
*portdata
;
546 struct usb_serial
*serial
= port
->serial
;
551 portdata
= usb_get_serial_port_data(port
);
555 /* Set some sane defaults */
556 portdata
->rts_state
= 1;
557 portdata
->dtr_state
= 1;
559 /* Reset low level data toggle and start reading from endpoints */
560 for (i
= 0; i
< N_IN_URB
; i
++) {
561 urb
= portdata
->in_urbs
[i
];
564 if (urb
->dev
!= serial
->dev
) {
565 dbg("%s: dev %p != %p", __func__
,
566 urb
->dev
, serial
->dev
);
571 * make sure endpoint data toggle is synchronized with the
574 usb_clear_halt(urb
->dev
, urb
->pipe
);
576 result
= usb_submit_urb(urb
, GFP_KERNEL
);
578 dev_err(&port
->dev
, "submit urb %d failed (%d) %d\n",
579 i
, result
, urb
->transfer_buffer_length
);
584 tty
->low_latency
= 1;
586 sierra_send_setup(tty
, port
);
588 /* start up the interrupt endpoint if we have one */
589 if (port
->interrupt_in_urb
) {
590 result
= usb_submit_urb(port
->interrupt_in_urb
, GFP_KERNEL
);
592 dev_err(&port
->dev
, "submit irq_in urb failed %d\n",
598 static void sierra_close(struct tty_struct
*tty
,
599 struct usb_serial_port
*port
, struct file
*filp
)
602 struct usb_serial
*serial
= port
->serial
;
603 struct sierra_port_private
*portdata
;
606 portdata
= usb_get_serial_port_data(port
);
608 portdata
->rts_state
= 0;
609 portdata
->dtr_state
= 0;
612 mutex_lock(&serial
->disc_mutex
);
613 if (!serial
->disconnected
)
614 sierra_send_setup(tty
, port
);
615 mutex_unlock(&serial
->disc_mutex
);
617 /* Stop reading/writing urbs */
618 for (i
= 0; i
< N_IN_URB
; i
++)
619 usb_kill_urb(portdata
->in_urbs
[i
]);
622 usb_kill_urb(port
->interrupt_in_urb
);
624 port
->port
.tty
= NULL
; /* FIXME */
627 static int sierra_startup(struct usb_serial
*serial
)
629 struct usb_serial_port
*port
;
630 struct sierra_port_private
*portdata
;
637 /* Set Device mode to D0 */
638 sierra_set_power_state(serial
->dev
, 0x0000);
640 /* Check NMEA and set */
642 sierra_vsc_set_nmea(serial
->dev
, 1);
644 /* Now setup per port private data */
645 for (i
= 0; i
< serial
->num_ports
; i
++) {
646 port
= serial
->port
[i
];
647 portdata
= kzalloc(sizeof(*portdata
), GFP_KERNEL
);
649 dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
653 spin_lock_init(&portdata
->lock
);
654 for (j
= 0; j
< N_IN_URB
; j
++) {
655 portdata
->in_buffer
[j
] = kmalloc(IN_BUFLEN
, GFP_KERNEL
);
656 if (!portdata
->in_buffer
[j
]) {
657 for (--j
; j
>= 0; j
--)
658 kfree(portdata
->in_buffer
[j
]);
664 usb_set_serial_port_data(port
, portdata
);
666 /* initialize the in urbs */
667 for (j
= 0; j
< N_IN_URB
; ++j
) {
668 urb
= usb_alloc_urb(0, GFP_KERNEL
);
670 dbg("%s: alloc for in port failed.",
674 /* Fill URB using supplied data. */
675 usb_fill_bulk_urb(urb
, serial
->dev
,
676 usb_rcvbulkpipe(serial
->dev
,
677 port
->bulk_in_endpointAddress
),
678 portdata
->in_buffer
[j
], IN_BUFLEN
,
679 sierra_indat_callback
, port
);
680 portdata
->in_urbs
[j
] = urb
;
687 static void sierra_shutdown(struct usb_serial
*serial
)
690 struct usb_serial_port
*port
;
691 struct sierra_port_private
*portdata
;
695 for (i
= 0; i
< serial
->num_ports
; ++i
) {
696 port
= serial
->port
[i
];
699 portdata
= usb_get_serial_port_data(port
);
703 for (j
= 0; j
< N_IN_URB
; j
++) {
704 usb_kill_urb(portdata
->in_urbs
[j
]);
705 usb_free_urb(portdata
->in_urbs
[j
]);
706 kfree(portdata
->in_buffer
[j
]);
709 usb_set_serial_port_data(port
, NULL
);
713 static struct usb_serial_driver sierra_device
= {
715 .owner
= THIS_MODULE
,
718 .description
= "Sierra USB modem",
719 .id_table
= id_table
,
720 .usb_driver
= &sierra_driver
,
721 .calc_num_ports
= sierra_calc_num_ports
,
722 .probe
= sierra_probe
,
724 .close
= sierra_close
,
725 .write
= sierra_write
,
726 .write_room
= sierra_write_room
,
727 .set_termios
= sierra_set_termios
,
728 .tiocmget
= sierra_tiocmget
,
729 .tiocmset
= sierra_tiocmset
,
730 .attach
= sierra_startup
,
731 .shutdown
= sierra_shutdown
,
732 .read_int_callback
= sierra_instat_callback
,
735 /* Functions used by new usb-serial code. */
736 static int __init
sierra_init(void)
739 retval
= usb_serial_register(&sierra_device
);
741 goto failed_device_register
;
744 retval
= usb_register(&sierra_driver
);
746 goto failed_driver_register
;
748 info(DRIVER_DESC
": " DRIVER_VERSION
);
752 failed_driver_register
:
753 usb_serial_deregister(&sierra_device
);
754 failed_device_register
:
758 static void __exit
sierra_exit(void)
760 usb_deregister(&sierra_driver
);
761 usb_serial_deregister(&sierra_device
);
764 module_init(sierra_init
);
765 module_exit(sierra_exit
);
767 MODULE_AUTHOR(DRIVER_AUTHOR
);
768 MODULE_DESCRIPTION(DRIVER_DESC
);
769 MODULE_VERSION(DRIVER_VERSION
);
770 MODULE_LICENSE("GPL");
772 module_param(truinstall
, bool, 0);
773 MODULE_PARM_DESC(truinstall
, "TRU-Install support");
775 module_param(nmea
, bool, 0);
776 MODULE_PARM_DESC(nmea
, "NMEA streaming");
778 #ifdef CONFIG_USB_DEBUG
779 module_param(debug
, bool, S_IRUGO
| S_IWUSR
);
780 MODULE_PARM_DESC(debug
, "Debug messages");