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| Current File : //usr/src/sys/dev/usb/serial/ulpt.c |
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/usb/serial/ulpt.c 235000 2012-05-04 15:05:30Z hselasky $");
/* $NetBSD: ulpt.c,v 1.60 2003/10/04 21:19:50 augustss Exp $ */
/*-
* Copyright (c) 1998, 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Printer Class spec: http://www.usb.org/developers/data/devclass/usbprint109.PDF
* Printer Class spec: http://www.usb.org/developers/devclass_docs/usbprint11.pdf
*/
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <sys/syslog.h>
#include <sys/selinfo.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbhid.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR ulpt_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#ifdef USB_DEBUG
static int ulpt_debug = 0;
SYSCTL_NODE(_hw_usb, OID_AUTO, ulpt, CTLFLAG_RW, 0, "USB ulpt");
SYSCTL_INT(_hw_usb_ulpt, OID_AUTO, debug, CTLFLAG_RW,
&ulpt_debug, 0, "Debug level");
#endif
#define ULPT_BSIZE (1<<15) /* bytes */
#define ULPT_IFQ_MAXLEN 2 /* units */
#define UR_GET_DEVICE_ID 0x00
#define UR_GET_PORT_STATUS 0x01
#define UR_SOFT_RESET 0x02
#define LPS_NERR 0x08 /* printer no error */
#define LPS_SELECT 0x10 /* printer selected */
#define LPS_NOPAPER 0x20 /* printer out of paper */
#define LPS_INVERT (LPS_SELECT|LPS_NERR)
#define LPS_MASK (LPS_SELECT|LPS_NERR|LPS_NOPAPER)
enum {
ULPT_BULK_DT_WR,
ULPT_BULK_DT_RD,
ULPT_INTR_DT_RD,
ULPT_N_TRANSFER,
};
struct ulpt_softc {
struct usb_fifo_sc sc_fifo;
struct usb_fifo_sc sc_fifo_noreset;
struct mtx sc_mtx;
struct usb_callout sc_watchdog;
device_t sc_dev;
struct usb_device *sc_udev;
struct usb_fifo *sc_fifo_open[2];
struct usb_xfer *sc_xfer[ULPT_N_TRANSFER];
int sc_fflags; /* current open flags, FREAD and
* FWRITE */
uint8_t sc_iface_no;
uint8_t sc_last_status;
uint8_t sc_zlps; /* number of consequtive zero length
* packets received */
};
/* prototypes */
static device_probe_t ulpt_probe;
static device_attach_t ulpt_attach;
static device_detach_t ulpt_detach;
static usb_callback_t ulpt_write_callback;
static usb_callback_t ulpt_read_callback;
static usb_callback_t ulpt_status_callback;
static void ulpt_reset(struct ulpt_softc *);
static void ulpt_watchdog(void *);
static usb_fifo_close_t ulpt_close;
static usb_fifo_cmd_t ulpt_start_read;
static usb_fifo_cmd_t ulpt_start_write;
static usb_fifo_cmd_t ulpt_stop_read;
static usb_fifo_cmd_t ulpt_stop_write;
static usb_fifo_ioctl_t ulpt_ioctl;
static usb_fifo_open_t ulpt_open;
static usb_fifo_open_t unlpt_open;
static struct usb_fifo_methods ulpt_fifo_methods = {
.f_close = &ulpt_close,
.f_ioctl = &ulpt_ioctl,
.f_open = &ulpt_open,
.f_start_read = &ulpt_start_read,
.f_start_write = &ulpt_start_write,
.f_stop_read = &ulpt_stop_read,
.f_stop_write = &ulpt_stop_write,
.basename[0] = "ulpt",
};
static struct usb_fifo_methods unlpt_fifo_methods = {
.f_close = &ulpt_close,
.f_ioctl = &ulpt_ioctl,
.f_open = &unlpt_open,
.f_start_read = &ulpt_start_read,
.f_start_write = &ulpt_start_write,
.f_stop_read = &ulpt_stop_read,
.f_stop_write = &ulpt_stop_write,
.basename[0] = "unlpt",
};
static void
ulpt_reset(struct ulpt_softc *sc)
{
struct usb_device_request req;
DPRINTFN(2, "\n");
req.bRequest = UR_SOFT_RESET;
USETW(req.wValue, 0);
USETW(req.wIndex, sc->sc_iface_no);
USETW(req.wLength, 0);
/*
* There was a mistake in the USB printer 1.0 spec that gave the
* request type as UT_WRITE_CLASS_OTHER; it should have been
* UT_WRITE_CLASS_INTERFACE. Many printers use the old one,
* so we try both.
*/
mtx_lock(&sc->sc_mtx);
req.bmRequestType = UT_WRITE_CLASS_OTHER;
if (usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
&req, NULL, 0, NULL, 2 * USB_MS_HZ)) { /* 1.0 */
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
if (usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
&req, NULL, 0, NULL, 2 * USB_MS_HZ)) { /* 1.1 */
/* ignore error */
}
}
mtx_unlock(&sc->sc_mtx);
}
static void
ulpt_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ulpt_softc *sc = usbd_xfer_softc(xfer);
struct usb_fifo *f = sc->sc_fifo_open[USB_FIFO_TX];
struct usb_page_cache *pc;
int actlen, max;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
if (f == NULL) {
/* should not happen */
DPRINTF("no FIFO\n");
return;
}
DPRINTF("state=0x%x actlen=%d\n", USB_GET_STATE(xfer), actlen);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
case USB_ST_SETUP:
tr_setup:
pc = usbd_xfer_get_frame(xfer, 0);
max = usbd_xfer_max_len(xfer);
if (usb_fifo_get_data(f, pc, 0, max, &actlen, 0)) {
usbd_xfer_set_frame_len(xfer, 0, actlen);
usbd_transfer_submit(xfer);
}
break;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static void
ulpt_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ulpt_softc *sc = usbd_xfer_softc(xfer);
struct usb_fifo *f = sc->sc_fifo_open[USB_FIFO_RX];
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
if (f == NULL) {
/* should not happen */
DPRINTF("no FIFO\n");
return;
}
DPRINTF("state=0x%x\n", USB_GET_STATE(xfer));
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if (actlen == 0) {
if (sc->sc_zlps == 4) {
/* enable BULK throttle */
usbd_xfer_set_interval(xfer, 500); /* ms */
} else {
sc->sc_zlps++;
}
} else {
/* disable BULK throttle */
usbd_xfer_set_interval(xfer, 0);
sc->sc_zlps = 0;
}
pc = usbd_xfer_get_frame(xfer, 0);
usb_fifo_put_data(f, pc, 0, actlen, 1);
case USB_ST_SETUP:
tr_setup:
if (usb_fifo_put_bytes_max(f) != 0) {
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
}
break;
default: /* Error */
/* disable BULK throttle */
usbd_xfer_set_interval(xfer, 0);
sc->sc_zlps = 0;
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static void
ulpt_status_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ulpt_softc *sc = usbd_xfer_softc(xfer);
struct usb_device_request req;
struct usb_page_cache *pc;
uint8_t cur_status;
uint8_t new_status;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 1);
usbd_copy_out(pc, 0, &cur_status, 1);
cur_status = (cur_status ^ LPS_INVERT) & LPS_MASK;
new_status = cur_status & ~sc->sc_last_status;
sc->sc_last_status = cur_status;
if (new_status & LPS_SELECT)
log(LOG_NOTICE, "%s: offline\n",
device_get_nameunit(sc->sc_dev));
else if (new_status & LPS_NOPAPER)
log(LOG_NOTICE, "%s: out of paper\n",
device_get_nameunit(sc->sc_dev));
else if (new_status & LPS_NERR)
log(LOG_NOTICE, "%s: output error\n",
device_get_nameunit(sc->sc_dev));
break;
case USB_ST_SETUP:
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UR_GET_PORT_STATUS;
USETW(req.wValue, 0);
req.wIndex[0] = sc->sc_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 1);
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, 1);
usbd_xfer_set_frames(xfer, 2);
usbd_transfer_submit(xfer);
break;
default: /* Error */
DPRINTF("error=%s\n", usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* wait for next watchdog timeout */
}
break;
}
}
static const struct usb_config ulpt_config[ULPT_N_TRANSFER] = {
[ULPT_BULK_DT_WR] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = ULPT_BSIZE,
.flags = {.pipe_bof = 1,.proxy_buffer = 1},
.callback = &ulpt_write_callback,
},
[ULPT_BULK_DT_RD] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = ULPT_BSIZE,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,.proxy_buffer = 1},
.callback = &ulpt_read_callback,
},
[ULPT_INTR_DT_RD] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request) + 1,
.callback = &ulpt_status_callback,
.timeout = 1000, /* 1 second */
},
};
static void
ulpt_start_read(struct usb_fifo *fifo)
{
struct ulpt_softc *sc = usb_fifo_softc(fifo);
usbd_transfer_start(sc->sc_xfer[ULPT_BULK_DT_RD]);
}
static void
ulpt_stop_read(struct usb_fifo *fifo)
{
struct ulpt_softc *sc = usb_fifo_softc(fifo);
usbd_transfer_stop(sc->sc_xfer[ULPT_BULK_DT_RD]);
}
static void
ulpt_start_write(struct usb_fifo *fifo)
{
struct ulpt_softc *sc = usb_fifo_softc(fifo);
usbd_transfer_start(sc->sc_xfer[ULPT_BULK_DT_WR]);
}
static void
ulpt_stop_write(struct usb_fifo *fifo)
{
struct ulpt_softc *sc = usb_fifo_softc(fifo);
usbd_transfer_stop(sc->sc_xfer[ULPT_BULK_DT_WR]);
}
static int
ulpt_open(struct usb_fifo *fifo, int fflags)
{
struct ulpt_softc *sc = usb_fifo_softc(fifo);
/* we assume that open is a serial process */
if (sc->sc_fflags == 0) {
/* reset USB paralell port */
ulpt_reset(sc);
}
return (unlpt_open(fifo, fflags));
}
static int
unlpt_open(struct usb_fifo *fifo, int fflags)
{
struct ulpt_softc *sc = usb_fifo_softc(fifo);
if (sc->sc_fflags & fflags) {
return (EBUSY);
}
if (fflags & FREAD) {
/* clear stall first */
mtx_lock(&sc->sc_mtx);
usbd_xfer_set_stall(sc->sc_xfer[ULPT_BULK_DT_RD]);
mtx_unlock(&sc->sc_mtx);
if (usb_fifo_alloc_buffer(fifo,
usbd_xfer_max_len(sc->sc_xfer[ULPT_BULK_DT_RD]),
ULPT_IFQ_MAXLEN)) {
return (ENOMEM);
}
/* set which FIFO is opened */
sc->sc_fifo_open[USB_FIFO_RX] = fifo;
}
if (fflags & FWRITE) {
/* clear stall first */
mtx_lock(&sc->sc_mtx);
usbd_xfer_set_stall(sc->sc_xfer[ULPT_BULK_DT_WR]);
mtx_unlock(&sc->sc_mtx);
if (usb_fifo_alloc_buffer(fifo,
usbd_xfer_max_len(sc->sc_xfer[ULPT_BULK_DT_WR]),
ULPT_IFQ_MAXLEN)) {
return (ENOMEM);
}
/* set which FIFO is opened */
sc->sc_fifo_open[USB_FIFO_TX] = fifo;
}
sc->sc_fflags |= fflags & (FREAD | FWRITE);
return (0);
}
static void
ulpt_close(struct usb_fifo *fifo, int fflags)
{
struct ulpt_softc *sc = usb_fifo_softc(fifo);
sc->sc_fflags &= ~(fflags & (FREAD | FWRITE));
if (fflags & (FREAD | FWRITE)) {
usb_fifo_free_buffer(fifo);
}
}
static int
ulpt_ioctl(struct usb_fifo *fifo, u_long cmd, void *data,
int fflags)
{
return (ENODEV);
}
static const STRUCT_USB_HOST_ID ulpt_devs[] = {
/* Uni-directional USB printer */
{USB_IFACE_CLASS(UICLASS_PRINTER),
USB_IFACE_SUBCLASS(UISUBCLASS_PRINTER),
USB_IFACE_PROTOCOL(UIPROTO_PRINTER_UNI)},
/* Bi-directional USB printer */
{USB_IFACE_CLASS(UICLASS_PRINTER),
USB_IFACE_SUBCLASS(UISUBCLASS_PRINTER),
USB_IFACE_PROTOCOL(UIPROTO_PRINTER_BI)},
/* 1284 USB printer */
{USB_IFACE_CLASS(UICLASS_PRINTER),
USB_IFACE_SUBCLASS(UISUBCLASS_PRINTER),
USB_IFACE_PROTOCOL(UIPROTO_PRINTER_1284)},
};
static int
ulpt_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
int error;
DPRINTFN(11, "\n");
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
error = usbd_lookup_id_by_uaa(ulpt_devs, sizeof(ulpt_devs), uaa);
if (error)
return (error);
return (BUS_PROBE_GENERIC);
}
static int
ulpt_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct ulpt_softc *sc = device_get_softc(dev);
struct usb_interface_descriptor *id;
int unit = device_get_unit(dev);
int error;
uint8_t iface_index = uaa->info.bIfaceIndex;
uint8_t alt_index;
DPRINTFN(11, "sc=%p\n", sc);
sc->sc_dev = dev;
sc->sc_udev = uaa->device;
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, "ulpt lock", NULL, MTX_DEF | MTX_RECURSE);
usb_callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
/* search through all the descriptors looking for bidir mode */
id = usbd_get_interface_descriptor(uaa->iface);
alt_index = 0xFF;
while (1) {
if (id == NULL) {
break;
}
if ((id->bDescriptorType == UDESC_INTERFACE) &&
(id->bLength >= sizeof(*id))) {
if (id->bInterfaceNumber != uaa->info.bIfaceNum) {
break;
} else {
alt_index++;
if ((id->bInterfaceClass == UICLASS_PRINTER) &&
(id->bInterfaceSubClass == UISUBCLASS_PRINTER) &&
(id->bInterfaceProtocol == UIPROTO_PRINTER_BI)) {
goto found;
}
}
}
id = (void *)usb_desc_foreach(
usbd_get_config_descriptor(uaa->device), (void *)id);
}
goto detach;
found:
DPRINTF("setting alternate "
"config number: %d\n", alt_index);
if (alt_index) {
error = usbd_set_alt_interface_index
(uaa->device, iface_index, alt_index);
if (error) {
DPRINTF("could not set alternate "
"config, error=%s\n", usbd_errstr(error));
goto detach;
}
}
sc->sc_iface_no = id->bInterfaceNumber;
error = usbd_transfer_setup(uaa->device, &iface_index,
sc->sc_xfer, ulpt_config, ULPT_N_TRANSFER,
sc, &sc->sc_mtx);
if (error) {
DPRINTF("error=%s\n", usbd_errstr(error));
goto detach;
}
device_printf(sc->sc_dev, "using bi-directional mode\n");
#if 0
/*
* This code is disabled because for some mysterious reason it causes
* printing not to work. But only sometimes, and mostly with
* UHCI and less often with OHCI. *sigh*
*/
{
struct usb_config_descriptor *cd = usbd_get_config_descriptor(dev);
struct usb_device_request req;
int len, alen;
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UR_GET_DEVICE_ID;
USETW(req.wValue, cd->bConfigurationValue);
USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting);
USETW(req.wLength, sizeof devinfo - 1);
error = usbd_do_request_flags(dev, &req, devinfo, USB_SHORT_XFER_OK,
&alen, USB_DEFAULT_TIMEOUT);
if (error) {
device_printf(sc->sc_dev, "cannot get device id\n");
} else if (alen <= 2) {
device_printf(sc->sc_dev, "empty device id, no "
"printer connected?\n");
} else {
/* devinfo now contains an IEEE-1284 device ID */
len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff);
if (len > sizeof devinfo - 3)
len = sizeof devinfo - 3;
devinfo[len] = 0;
printf("%s: device id <", device_get_nameunit(sc->sc_dev));
ieee1284_print_id(devinfo + 2);
printf(">\n");
}
}
#endif
error = usb_fifo_attach(uaa->device, sc, &sc->sc_mtx,
&ulpt_fifo_methods, &sc->sc_fifo,
unit, -1, uaa->info.bIfaceIndex,
UID_ROOT, GID_OPERATOR, 0644);
if (error) {
goto detach;
}
error = usb_fifo_attach(uaa->device, sc, &sc->sc_mtx,
&unlpt_fifo_methods, &sc->sc_fifo_noreset,
unit, -1, uaa->info.bIfaceIndex,
UID_ROOT, GID_OPERATOR, 0644);
if (error) {
goto detach;
}
/* start reading of status */
mtx_lock(&sc->sc_mtx);
ulpt_watchdog(sc);
mtx_unlock(&sc->sc_mtx);
return (0);
detach:
ulpt_detach(dev);
return (ENOMEM);
}
static int
ulpt_detach(device_t dev)
{
struct ulpt_softc *sc = device_get_softc(dev);
DPRINTF("sc=%p\n", sc);
usb_fifo_detach(&sc->sc_fifo);
usb_fifo_detach(&sc->sc_fifo_noreset);
mtx_lock(&sc->sc_mtx);
usb_callout_stop(&sc->sc_watchdog);
mtx_unlock(&sc->sc_mtx);
usbd_transfer_unsetup(sc->sc_xfer, ULPT_N_TRANSFER);
usb_callout_drain(&sc->sc_watchdog);
mtx_destroy(&sc->sc_mtx);
return (0);
}
#if 0
/* XXX This does not belong here. */
/*
* Compare two strings until the second ends.
*/
static uint8_t
ieee1284_compare(const char *a, const char *b)
{
while (1) {
if (*b == 0) {
break;
}
if (*a != *b) {
return 1;
}
b++;
a++;
}
return 0;
}
/*
* Print select parts of an IEEE 1284 device ID.
*/
void
ieee1284_print_id(char *str)
{
char *p, *q;
for (p = str - 1; p; p = strchr(p, ';')) {
p++; /* skip ';' */
if (ieee1284_compare(p, "MFG:") == 0 ||
ieee1284_compare(p, "MANUFACTURER:") == 0 ||
ieee1284_compare(p, "MDL:") == 0 ||
ieee1284_compare(p, "MODEL:") == 0) {
q = strchr(p, ';');
if (q)
printf("%.*s", (int)(q - p + 1), p);
}
}
}
#endif
static void
ulpt_watchdog(void *arg)
{
struct ulpt_softc *sc = arg;
mtx_assert(&sc->sc_mtx, MA_OWNED);
/*
* Only read status while the device is not opened, due to
* possible hardware or firmware bug in some printers.
*/
if (sc->sc_fflags == 0)
usbd_transfer_start(sc->sc_xfer[ULPT_INTR_DT_RD]);
usb_callout_reset(&sc->sc_watchdog,
hz, &ulpt_watchdog, sc);
}
static devclass_t ulpt_devclass;
static device_method_t ulpt_methods[] = {
DEVMETHOD(device_probe, ulpt_probe),
DEVMETHOD(device_attach, ulpt_attach),
DEVMETHOD(device_detach, ulpt_detach),
{0, 0}
};
static driver_t ulpt_driver = {
.name = "ulpt",
.methods = ulpt_methods,
.size = sizeof(struct ulpt_softc),
};
DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, NULL, 0);
MODULE_DEPEND(ulpt, usb, 1, 1, 1);
MODULE_VERSION(ulpt, 1);