1 /* $NetBSD: dev.c,v 1.4 1994/10/30 21:48:23 cgd Exp $ */
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31 * @(#)dev.c 8.1 (Berkeley) 6/11/93
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #include <sys/param.h>
38 #include <sys/reboot.h>
55 noioctl(struct open_file *f __unused, u_long cmd __unused, void *data __unused)
61 devformat(struct devdesc *d)
63 static char name[DEV_DEVLEN];
65 if (d->d_dev->dv_fmtdev != NULL)
66 return (d->d_dev->dv_fmtdev(d));
67 snprintf(name, sizeof(name), "%s%d:", d->d_dev->dv_name, d->d_unit);
71 /* NB: devspec points to the remainder of the device name after dv_name */
73 default_parsedev(struct devdesc **dev, const char *devspec,
80 idev = malloc(sizeof(struct devdesc));
85 cp = (char *)devspec; /* strtol interface, alas */
87 if (*devspec != '\0' && *devspec != ':') {
89 unit = strtol(devspec, &cp, 0);
90 if (errno != 0 || cp == devspec) {
95 if (*cp != '\0' && *cp != ':') {
102 *path = (*cp == 0) ? cp : cp + 1;
110 /* NB: devspec points to the whole device spec, and possible trailing path */
112 devparse(struct devdesc **dev, const char *devspec, const char **path)
114 struct devdesc *idev;
119 /* minimum length check */
120 if (strlen(devspec) < 2)
123 /* look for a device that matches */
124 for (i = 0; devsw[i] != NULL; i++) {
126 if (dv->dv_match != NULL) {
127 if (dv->dv_match(dv, devspec) != 0)
130 if (!strncmp(devspec, dv->dv_name, strlen(dv->dv_name)))
134 if (devsw[i] == NULL)
138 if (dv->dv_parsedev) {
139 err = dv->dv_parsedev(&idev, devspec, path);
141 np = devspec + strlen(dv->dv_name);
142 err = default_parsedev(&idev, np, path);
161 * March through the device switch probing for things.
163 for (int i = 0; devsw[i] != NULL; i++) {
164 if (devsw[i]->dv_init != NULL) {
165 if ((devsw[i]->dv_init)() != 0) {
178 /* Call cleanup routines */
179 for (i = 0; devsw[i] != NULL; ++i)
180 if (devsw[i]->dv_cleanup != NULL)
181 (devsw[i]->dv_cleanup)();