2 * USB Keyspan PDA / Xircom / Entregra Converter driver
4 * Copyright (C) 1999 - 2001 Greg Kroah-Hartman <greg@kroah.com>
5 * Copyright (C) 1999, 2000 Brian Warner <warner@lothar.com>
6 * Copyright (C) 2000 Al Borchers <borchers@steinerpoint.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * See Documentation/usb/usb-serial.txt for more information on using this driver
16 * cleaned up the Xircom support. Added ids for Entregra device which is
17 * the same as the Xircom device. Enabled the code to be compiled for
18 * either Xircom or Keyspan devices.
20 * (08/11/2001) Cristian M. Craciunescu
21 * support for Xircom PGSDB9
24 * switched from using spinlock to a semaphore, which fixes lots of problems.
27 * Identify version on module load.
29 * (11/01/2000) Adam J. Richter
30 * usb_device_id table support
33 * Fixed bug with urb->dev not being set properly, now that the usb
37 * Added locks for SMP safeness.
38 * Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
41 * (07/20/2000) borchers
42 * - keyspan_pda_write no longer sleeps if it is called on interrupt time;
43 * PPP and the line discipline with stty echo on can call write on
44 * interrupt time and this would cause an oops if write slept
45 * - if keyspan_pda_write is in an interrupt, it will not call
46 * usb_control_msg (which sleeps) to query the room in the device
47 * buffer, it simply uses the current room value it has
48 * - if the urb is busy or if it is throttled keyspan_pda_write just
49 * returns 0, rather than sleeping to wait for this to change; the
50 * write_chan code in n_tty.c will sleep if needed before calling
51 * keyspan_pda_write again
52 * - if the device needs to be unthrottled, write now queues up the
53 * call to usb_control_msg (which sleeps) to unthrottle the device
54 * - the wakeups from keyspan_pda_write_bulk_callback are queued rather
55 * than done directly from the callback to avoid the race in write_chan
56 * - keyspan_pda_chars_in_buffer also indicates its buffer is full if the
57 * urb status is -EINPROGRESS, meaning it cannot write at the moment
60 * Added module_init and module_exit functions to handle the fact that this
61 * driver is a loadable module now.
64 * Split driver up into device specific pieces.
69 #include <linux/kernel.h>
70 #include <linux/errno.h>
71 #include <linux/init.h>
72 #include <linux/slab.h>
73 #include <linux/tty.h>
74 #include <linux/tty_driver.h>
75 #include <linux/tty_flip.h>
76 #include <linux/module.h>
77 #include <linux/spinlock.h>
78 #include <linux/workqueue.h>
79 #include <asm/uaccess.h>
80 #include <linux/usb.h>
81 #include <linux/usb/serial.h>
85 struct ezusb_hex_record {
91 /* make a simple define to handle if we are compiling keyspan_pda or xircom support */
92 #if defined(CONFIG_USB_SERIAL_KEYSPAN_PDA) || defined(CONFIG_USB_SERIAL_KEYSPAN_PDA_MODULE)
97 #if defined(CONFIG_USB_SERIAL_XIRCOM) || defined(CONFIG_USB_SERIAL_XIRCOM_MODULE)
104 #include "keyspan_pda_fw.h"
108 #include "xircom_pgs_fw.h"
112 * Version Information
114 #define DRIVER_VERSION "v1.1"
115 #define DRIVER_AUTHOR "Brian Warner <warner@lothar.com>"
116 #define DRIVER_DESC "USB Keyspan PDA Converter driver"
118 struct keyspan_pda_private {
121 struct work_struct wakeup_work;
122 struct work_struct unthrottle_work;
123 struct usb_serial *serial;
124 struct usb_serial_port *port;
128 #define KEYSPAN_VENDOR_ID 0x06cd
129 #define KEYSPAN_PDA_FAKE_ID 0x0103
130 #define KEYSPAN_PDA_ID 0x0104 /* no clue */
132 /* For Xircom PGSDB9 and older Entregra version of the same device */
133 #define XIRCOM_VENDOR_ID 0x085a
134 #define XIRCOM_FAKE_ID 0x8027
135 #define ENTREGRA_VENDOR_ID 0x1645
136 #define ENTREGRA_FAKE_ID 0x8093
138 static struct usb_device_id id_table_combined [] = {
140 { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) },
143 { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
144 { USB_DEVICE(ENTREGRA_VENDOR_ID, ENTREGRA_FAKE_ID) },
146 { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
147 { } /* Terminating entry */
150 MODULE_DEVICE_TABLE (usb, id_table_combined);
152 static struct usb_driver keyspan_pda_driver = {
153 .name = "keyspan_pda",
154 .probe = usb_serial_probe,
155 .disconnect = usb_serial_disconnect,
156 .id_table = id_table_combined,
160 static struct usb_device_id id_table_std [] = {
161 { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
162 { } /* Terminating entry */
166 static struct usb_device_id id_table_fake [] = {
167 { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) },
168 { } /* Terminating entry */
173 static struct usb_device_id id_table_fake_xircom [] = {
174 { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
175 { USB_DEVICE(ENTREGRA_VENDOR_ID, ENTREGRA_FAKE_ID) },
180 static void keyspan_pda_wakeup_write(struct work_struct *work)
182 struct keyspan_pda_private *priv =
183 container_of(work, struct keyspan_pda_private, wakeup_work);
184 struct usb_serial_port *port = priv->port;
185 struct tty_struct *tty = port->tty;
187 /* wake up port processes */
188 wake_up_interruptible( &port->write_wait );
190 /* wake up line discipline */
194 static void keyspan_pda_request_unthrottle(struct work_struct *work)
196 struct keyspan_pda_private *priv =
197 container_of(work, struct keyspan_pda_private, unthrottle_work);
198 struct usb_serial *serial = priv->serial;
201 dbg(" request_unthrottle");
202 /* ask the device to tell us when the tx buffer becomes
203 sufficiently empty */
204 result = usb_control_msg(serial->dev,
205 usb_sndctrlpipe(serial->dev, 0),
206 7, /* request_unthrottle */
207 USB_TYPE_VENDOR | USB_RECIP_INTERFACE
209 16, /* value: threshold */
215 dbg("%s - error %d from usb_control_msg",
216 __FUNCTION__, result);
220 static void keyspan_pda_rx_interrupt (struct urb *urb)
222 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
223 struct tty_struct *tty = port->tty;
224 unsigned char *data = urb->transfer_buffer;
227 struct keyspan_pda_private *priv;
228 priv = usb_get_serial_port_data(port);
230 switch (urb->status) {
237 /* this urb is terminated, clean up */
238 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
241 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
245 /* see if the message is data or a status interrupt */
248 /* rest of message is rx data */
249 if (urb->actual_length) {
250 for (i = 1; i < urb->actual_length ; ++i) {
251 tty_insert_flip_char(tty, data[i], 0);
253 tty_flip_buffer_push(tty);
257 /* status interrupt */
258 dbg(" rx int, d1=%d, d2=%d", data[1], data[2]);
260 case 1: /* modemline change */
262 case 2: /* tx unthrottle interrupt */
263 priv->tx_throttled = 0;
264 /* queue up a wakeup at scheduler time */
265 schedule_work(&priv->wakeup_work);
276 status = usb_submit_urb (urb, GFP_ATOMIC);
278 err ("%s - usb_submit_urb failed with result %d",
279 __FUNCTION__, status);
283 static void keyspan_pda_rx_throttle (struct usb_serial_port *port)
285 /* stop receiving characters. We just turn off the URB request, and
286 let chars pile up in the device. If we're doing hardware
287 flowcontrol, the device will signal the other end when its buffer
288 fills up. If we're doing XON/XOFF, this would be a good time to
289 send an XOFF, although it might make sense to foist that off
290 upon the device too. */
292 dbg("keyspan_pda_rx_throttle port %d", port->number);
293 usb_kill_urb(port->interrupt_in_urb);
297 static void keyspan_pda_rx_unthrottle (struct usb_serial_port *port)
299 /* just restart the receive interrupt URB */
300 dbg("keyspan_pda_rx_unthrottle port %d", port->number);
301 port->interrupt_in_urb->dev = port->serial->dev;
302 if (usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC))
303 dbg(" usb_submit_urb(read urb) failed");
308 static int keyspan_pda_setbaud (struct usb_serial *serial, int baud)
314 case 110: bindex = 0; break;
315 case 300: bindex = 1; break;
316 case 1200: bindex = 2; break;
317 case 2400: bindex = 3; break;
318 case 4800: bindex = 4; break;
319 case 9600: bindex = 5; break;
320 case 19200: bindex = 6; break;
321 case 38400: bindex = 7; break;
322 case 57600: bindex = 8; break;
323 case 115200: bindex = 9; break;
324 default: return -EINVAL;
327 /* rather than figure out how to sleep while waiting for this
328 to complete, I just use the "legacy" API. */
329 rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
332 | USB_RECIP_INTERFACE
333 | USB_DIR_OUT, /* type */
343 static void keyspan_pda_break_ctl (struct usb_serial_port *port, int break_state)
345 struct usb_serial *serial = port->serial;
349 if (break_state == -1)
350 value = 1; /* start break */
352 value = 0; /* clear break */
353 result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
355 USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
356 value, 0, NULL, 0, 2000);
358 dbg("%s - error %d from usb_control_msg",
359 __FUNCTION__, result);
360 /* there is something funky about this.. the TCSBRK that 'cu' performs
361 ought to translate into a break_ctl(-1),break_ctl(0) pair HZ/4
362 seconds apart, but it feels like the break sent isn't as long as it
367 static void keyspan_pda_set_termios (struct usb_serial_port *port,
368 struct ktermios *old_termios)
370 struct usb_serial *serial = port->serial;
371 unsigned int cflag = port->tty->termios->c_cflag;
373 /* cflag specifies lots of stuff: number of stop bits, parity, number
374 of data bits, baud. What can the device actually handle?:
375 CSTOPB (1 stop bit or 2)
378 There is minimal hw support for parity (a PSW bit seems to hold the
379 parity of whatever is in the accumulator). The UART either deals
380 with 10 bits (start, 8 data, stop) or 11 bits (start, 8 data,
381 1 special, stop). So, with firmware changes, we could do:
383 8N2: 11 bit, extra bit always (mark?)
384 8[EOMS]1: 11 bit, extra bit is parity
385 7[EOMS]1: 10 bit, b0/b7 is parity
386 7[EOMS]2: 11 bit, b0/b7 is parity, extra bit always (mark?)
388 HW flow control is dictated by the tty->termios->c_cflags & CRTSCTS
391 For now, just do baud. */
393 switch (cflag & CBAUD) {
394 /* we could support more values here, just need to calculate
395 the necessary divisors in the firmware. <asm/termbits.h>
396 has the Bnnn constants. */
397 case B110: keyspan_pda_setbaud(serial, 110); break;
398 case B300: keyspan_pda_setbaud(serial, 300); break;
399 case B1200: keyspan_pda_setbaud(serial, 1200); break;
400 case B2400: keyspan_pda_setbaud(serial, 2400); break;
401 case B4800: keyspan_pda_setbaud(serial, 4800); break;
402 case B9600: keyspan_pda_setbaud(serial, 9600); break;
403 case B19200: keyspan_pda_setbaud(serial, 19200); break;
404 case B38400: keyspan_pda_setbaud(serial, 38400); break;
405 case B57600: keyspan_pda_setbaud(serial, 57600); break;
406 case B115200: keyspan_pda_setbaud(serial, 115200); break;
407 default: dbg("can't handle requested baud rate"); break;
412 /* modem control pins: DTR and RTS are outputs and can be controlled.
413 DCD, RI, DSR, CTS are inputs and can be read. All outputs can also be
414 read. The byte passed is: DTR(b7) DCD RI DSR CTS RTS(b2) unused unused */
416 static int keyspan_pda_get_modem_info(struct usb_serial *serial,
417 unsigned char *value)
421 rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
423 USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_IN,
424 0, 0, &data, 1, 2000);
431 static int keyspan_pda_set_modem_info(struct usb_serial *serial,
435 rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
437 USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_OUT,
438 value, 0, NULL, 0, 2000);
442 static int keyspan_pda_tiocmget(struct usb_serial_port *port, struct file *file)
444 struct usb_serial *serial = port->serial;
446 unsigned char status;
449 rc = keyspan_pda_get_modem_info(serial, &status);
453 ((status & (1<<7)) ? TIOCM_DTR : 0) |
454 ((status & (1<<6)) ? TIOCM_CAR : 0) |
455 ((status & (1<<5)) ? TIOCM_RNG : 0) |
456 ((status & (1<<4)) ? TIOCM_DSR : 0) |
457 ((status & (1<<3)) ? TIOCM_CTS : 0) |
458 ((status & (1<<2)) ? TIOCM_RTS : 0);
462 static int keyspan_pda_tiocmset(struct usb_serial_port *port, struct file *file,
463 unsigned int set, unsigned int clear)
465 struct usb_serial *serial = port->serial;
467 unsigned char status;
469 rc = keyspan_pda_get_modem_info(serial, &status);
478 if (clear & TIOCM_RTS)
480 if (clear & TIOCM_DTR)
482 rc = keyspan_pda_set_modem_info(serial, status);
486 static int keyspan_pda_ioctl(struct usb_serial_port *port, struct file *file,
487 unsigned int cmd, unsigned long arg)
491 /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
494 /* return count of modemline transitions */
501 static int keyspan_pda_write(struct usb_serial_port *port,
502 const unsigned char *buf, int count)
504 struct usb_serial *serial = port->serial;
505 int request_unthrottle = 0;
507 struct keyspan_pda_private *priv;
509 priv = usb_get_serial_port_data(port);
510 /* guess how much room is left in the device's ring buffer, and if we
511 want to send more than that, check first, updating our notion of
512 what is left. If our write will result in no room left, ask the
513 device to give us an interrupt when the room available rises above
514 a threshold, and hold off all writers (eventually, those using
515 select() or poll() too) until we receive that unthrottle interrupt.
516 Block if we can't write anything at all, otherwise write as much as
518 dbg("keyspan_pda_write(%d)",count);
520 dbg(" write request of 0 bytes");
524 /* we might block because of:
525 the TX urb is in-flight (wait until it completes)
526 the device is full (wait until it says there is room)
528 spin_lock_bh(&port->lock);
529 if (port->write_urb_busy || priv->tx_throttled) {
530 spin_unlock_bh(&port->lock);
533 port->write_urb_busy = 1;
534 spin_unlock_bh(&port->lock);
536 /* At this point the URB is in our control, nobody else can submit it
537 again (the only sudden transition was the one from EINPROGRESS to
538 finished). Also, the tx process is not throttled. So we are
541 count = (count > port->bulk_out_size) ? port->bulk_out_size : count;
543 /* Check if we might overrun the Tx buffer. If so, ask the
544 device how much room it really has. This is done only on
545 scheduler time, since usb_control_msg() sleeps. */
546 if (count > priv->tx_room && !in_interrupt()) {
548 rc = usb_control_msg(serial->dev,
549 usb_rcvctrlpipe(serial->dev, 0),
551 USB_TYPE_VENDOR | USB_RECIP_INTERFACE
553 0, /* value: 0 means "remaining room" */
559 dbg(" roomquery failed");
563 dbg(" roomquery returned 0 bytes");
564 rc = -EIO; /* device didn't return any data */
567 dbg(" roomquery says %d", room);
568 priv->tx_room = room;
570 if (count > priv->tx_room) {
571 /* we're about to completely fill the Tx buffer, so
572 we'll be throttled afterwards. */
573 count = priv->tx_room;
574 request_unthrottle = 1;
578 /* now transfer data */
579 memcpy (port->write_urb->transfer_buffer, buf, count);
580 /* send the data out the bulk port */
581 port->write_urb->transfer_buffer_length = count;
583 priv->tx_room -= count;
585 port->write_urb->dev = port->serial->dev;
586 rc = usb_submit_urb(port->write_urb, GFP_ATOMIC);
588 dbg(" usb_submit_urb(write bulk) failed");
593 /* There wasn't any room left, so we are throttled until
594 the buffer empties a bit */
595 request_unthrottle = 1;
598 if (request_unthrottle) {
599 priv->tx_throttled = 1; /* block writers */
600 schedule_work(&priv->unthrottle_work);
606 port->write_urb_busy = 0;
611 static void keyspan_pda_write_bulk_callback (struct urb *urb)
613 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
614 struct keyspan_pda_private *priv;
616 port->write_urb_busy = 0;
617 priv = usb_get_serial_port_data(port);
619 /* queue up a wakeup at scheduler time */
620 schedule_work(&priv->wakeup_work);
624 static int keyspan_pda_write_room (struct usb_serial_port *port)
626 struct keyspan_pda_private *priv;
628 priv = usb_get_serial_port_data(port);
630 /* used by n_tty.c for processing of tabs and such. Giving it our
631 conservative guess is probably good enough, but needs testing by
632 running a console through the device. */
634 return (priv->tx_room);
638 static int keyspan_pda_chars_in_buffer (struct usb_serial_port *port)
640 struct keyspan_pda_private *priv;
642 priv = usb_get_serial_port_data(port);
644 /* when throttled, return at least WAKEUP_CHARS to tell select() (via
645 n_tty.c:normal_poll() ) that we're not writeable. */
646 if (port->write_urb_busy || priv->tx_throttled)
652 static int keyspan_pda_open (struct usb_serial_port *port, struct file *filp)
654 struct usb_serial *serial = port->serial;
657 struct keyspan_pda_private *priv;
659 /* find out how much room is in the Tx ring */
660 rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
662 USB_TYPE_VENDOR | USB_RECIP_INTERFACE
670 dbg("%s - roomquery failed", __FUNCTION__);
674 dbg("%s - roomquery returned 0 bytes", __FUNCTION__);
678 priv = usb_get_serial_port_data(port);
679 priv->tx_room = room;
680 priv->tx_throttled = room ? 0 : 1;
682 /* the normal serial device seems to always turn on DTR and RTS here,
684 if (port->tty->termios->c_cflag & CBAUD)
685 keyspan_pda_set_modem_info(serial, (1<<7) | (1<<2) );
687 keyspan_pda_set_modem_info(serial, 0);
689 /*Start reading from the device*/
690 port->interrupt_in_urb->dev = serial->dev;
691 rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
693 dbg("%s - usb_submit_urb(read int) failed", __FUNCTION__);
702 static void keyspan_pda_close(struct usb_serial_port *port, struct file *filp)
704 struct usb_serial *serial = port->serial;
707 /* the normal serial device seems to always shut off DTR and RTS now */
708 if (port->tty->termios->c_cflag & HUPCL)
709 keyspan_pda_set_modem_info(serial, 0);
711 /* shutdown our bulk reads and writes */
712 usb_kill_urb(port->write_urb);
713 usb_kill_urb(port->interrupt_in_urb);
718 /* download the firmware to a "fake" device (pre-renumeration) */
719 static int keyspan_pda_fake_startup (struct usb_serial *serial)
722 const struct ezusb_hex_record *record = NULL;
724 /* download the firmware here ... */
725 response = ezusb_set_reset(serial, 1);
728 if (le16_to_cpu(serial->dev->descriptor.idVendor) == KEYSPAN_VENDOR_ID)
729 record = &keyspan_pda_firmware[0];
732 if ((le16_to_cpu(serial->dev->descriptor.idVendor) == XIRCOM_VENDOR_ID) ||
733 (le16_to_cpu(serial->dev->descriptor.idVendor) == ENTREGRA_VENDOR_ID))
734 record = &xircom_pgs_firmware[0];
736 if (record == NULL) {
737 err("%s: unknown vendor, aborting.", __FUNCTION__);
741 while(record->address != 0xffff) {
742 response = ezusb_writememory(serial, record->address,
743 (unsigned char *)record->data,
744 record->data_size, 0xa0);
746 err("ezusb_writememory failed for Keyspan PDA "
747 "firmware (%d %04X %p %d)",
749 record->address, record->data, record->data_size);
754 /* bring device out of reset. Renumeration will occur in a moment
755 and the new device will bind to the real driver */
756 response = ezusb_set_reset(serial, 0);
758 /* we want this device to fail to have a driver assigned to it. */
762 static int keyspan_pda_startup (struct usb_serial *serial)
765 struct keyspan_pda_private *priv;
767 /* allocate the private data structures for all ports. Well, for all
770 priv = kmalloc(sizeof(struct keyspan_pda_private), GFP_KERNEL);
772 return (1); /* error */
773 usb_set_serial_port_data(serial->port[0], priv);
774 init_waitqueue_head(&serial->port[0]->write_wait);
775 INIT_WORK(&priv->wakeup_work, keyspan_pda_wakeup_write);
776 INIT_WORK(&priv->unthrottle_work, keyspan_pda_request_unthrottle);
777 priv->serial = serial;
778 priv->port = serial->port[0];
782 static void keyspan_pda_shutdown (struct usb_serial *serial)
784 dbg("%s", __FUNCTION__);
786 kfree(usb_get_serial_port_data(serial->port[0]));
790 static struct usb_serial_driver keyspan_pda_fake_device = {
792 .owner = THIS_MODULE,
793 .name = "keyspan_pda_pre",
795 .description = "Keyspan PDA - (prerenumeration)",
796 .usb_driver = &keyspan_pda_driver,
797 .id_table = id_table_fake,
798 .num_interrupt_in = NUM_DONT_CARE,
799 .num_bulk_in = NUM_DONT_CARE,
800 .num_bulk_out = NUM_DONT_CARE,
802 .attach = keyspan_pda_fake_startup,
807 static struct usb_serial_driver xircom_pgs_fake_device = {
809 .owner = THIS_MODULE,
810 .name = "xircom_no_firm",
812 .description = "Xircom / Entregra PGS - (prerenumeration)",
813 .usb_driver = &keyspan_pda_driver,
814 .id_table = id_table_fake_xircom,
815 .num_interrupt_in = NUM_DONT_CARE,
816 .num_bulk_in = NUM_DONT_CARE,
817 .num_bulk_out = NUM_DONT_CARE,
819 .attach = keyspan_pda_fake_startup,
823 static struct usb_serial_driver keyspan_pda_device = {
825 .owner = THIS_MODULE,
826 .name = "keyspan_pda",
828 .description = "Keyspan PDA",
829 .usb_driver = &keyspan_pda_driver,
830 .id_table = id_table_std,
831 .num_interrupt_in = 1,
835 .open = keyspan_pda_open,
836 .close = keyspan_pda_close,
837 .write = keyspan_pda_write,
838 .write_room = keyspan_pda_write_room,
839 .write_bulk_callback = keyspan_pda_write_bulk_callback,
840 .read_int_callback = keyspan_pda_rx_interrupt,
841 .chars_in_buffer = keyspan_pda_chars_in_buffer,
842 .throttle = keyspan_pda_rx_throttle,
843 .unthrottle = keyspan_pda_rx_unthrottle,
844 .ioctl = keyspan_pda_ioctl,
845 .set_termios = keyspan_pda_set_termios,
846 .break_ctl = keyspan_pda_break_ctl,
847 .tiocmget = keyspan_pda_tiocmget,
848 .tiocmset = keyspan_pda_tiocmset,
849 .attach = keyspan_pda_startup,
850 .shutdown = keyspan_pda_shutdown,
854 static int __init keyspan_pda_init (void)
857 retval = usb_serial_register(&keyspan_pda_device);
859 goto failed_pda_register;
861 retval = usb_serial_register(&keyspan_pda_fake_device);
863 goto failed_pda_fake_register;
866 retval = usb_serial_register(&xircom_pgs_fake_device);
868 goto failed_xircom_register;
870 retval = usb_register(&keyspan_pda_driver);
872 goto failed_usb_register;
873 info(DRIVER_DESC " " DRIVER_VERSION);
877 usb_serial_deregister(&xircom_pgs_fake_device);
878 failed_xircom_register:
881 usb_serial_deregister(&keyspan_pda_fake_device);
884 failed_pda_fake_register:
886 usb_serial_deregister(&keyspan_pda_device);
892 static void __exit keyspan_pda_exit (void)
894 usb_deregister (&keyspan_pda_driver);
895 usb_serial_deregister (&keyspan_pda_device);
897 usb_serial_deregister (&keyspan_pda_fake_device);
900 usb_serial_deregister (&xircom_pgs_fake_device);
905 module_init(keyspan_pda_init);
906 module_exit(keyspan_pda_exit);
908 MODULE_AUTHOR( DRIVER_AUTHOR );
909 MODULE_DESCRIPTION( DRIVER_DESC );
910 MODULE_LICENSE("GPL");
912 module_param(debug, bool, S_IRUGO | S_IWUSR);
913 MODULE_PARM_DESC(debug, "Debug enabled or not");