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When -v is specified with -p dev, print the same verbose output as

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when listing the whole tree. The list, however, is from the requested
device to the root (so it backwards from the normal tree).

Sponsored by: Netflix
This commit is contained in:
Warner Losh 2017-12-21 19:19:43 +00:00
parent 3ca6eb9faf
commit b68de8941f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=327068
2 changed files with 41 additions and 26 deletions
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3
usr.sbin/devinfo/devinfo.8
View File

@ -39,7 +39,7 @@
.Nm
.Fl u
.Nm
.Fl p Ar dev
.Fl p Ar dev Op Fl v
.Sh DESCRIPTION
The
.Nm
@ -64,6 +64,7 @@ the IRQ consumers together.
Display all devices in the driver tree, not just those that are attached or
busy.
Without this flag, only those devices that have attached are reported.
This flag also displays verbose information about each device.
.It Fl p Ar dev
Display the path of
.Ar dev

64
usr.sbin/devinfo/devinfo.c
View File

@ -131,6 +131,22 @@ print_device_rman_resources(struct devinfo_rman *rman, void *arg)
return(0);
}
static void
print_dev(struct devinfo_dev *dev)
{
printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown");
if (vflag && *dev->dd_pnpinfo)
printf(" pnpinfo %s", dev->dd_pnpinfo);
if (vflag && *dev->dd_location)
printf(" at %s", dev->dd_location);
if (!(dev->dd_flags & DF_ENABLED))
printf(" (disabled)");
else if (dev->dd_flags & DF_SUSPENDED)
printf(" (suspended)");
}
/*
* Print information about a device.
*/
@ -144,15 +160,7 @@ print_device(struct devinfo_dev *dev, void *arg)
indent = (int)(intptr_t)arg;
for (i = 0; i < indent; i++)
printf(" ");
printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown");
if (vflag && *dev->dd_pnpinfo)
printf(" pnpinfo %s", dev->dd_pnpinfo);
if (vflag && *dev->dd_location)
printf(" at %s", dev->dd_location);
if (!(dev->dd_flags & DF_ENABLED))
printf(" (disabled)");
else if (dev->dd_flags & DF_SUSPENDED)
printf(" (suspended)");
print_dev(dev);
printf("\n");
if (rflag) {
ia.indent = indent + 4;
@ -197,17 +205,6 @@ print_rman(struct devinfo_rman *rman, void *arg __unused)
return(0);
}
static void __dead2
usage(void)
{
fprintf(stderr, "%s\n%s\n%s\n",
"usage: devinfo [-rv]",
" devinfo -u",
" devifno -p dev");
exit(1);
}
static int
print_path(struct devinfo_dev *dev, void *xname)
{
@ -215,22 +212,38 @@ print_path(struct devinfo_dev *dev, void *xname)
int rv;
if (strcmp(dev->dd_name, name) == 0) {
printf("%s", dev->dd_name);
print_dev(dev);
if (vflag)
printf("\n");
return (1);
}
rv = devinfo_foreach_device_child(dev, print_path, xname);
if (rv == 1)
printf(" %s", dev->dd_name[0] ? dev->dd_name : "unknown");
if (rv == 1) {
printf(" ");
print_dev(dev);
if (vflag)
printf("\n");
}
return (rv);
}
static void __dead2
usage(void)
{
fprintf(stderr, "%s\n%s\n%s\n",
"usage: devinfo [-rv]",
" devinfo -u",
" devifno -p dev [-v]");
exit(1);
}
int
main(int argc, char *argv[])
{
struct devinfo_dev *root;
int c, uflag;
char *path;
char *path = NULL;
uflag = 0;
while ((c = getopt(argc, argv, "p:ruv")) != -1) {
@ -264,7 +277,8 @@ main(int argc, char *argv[])
if (path) {
if (devinfo_foreach_device_child(root, print_path, (void *)path) == 0)
errx(1, "%s: Not found", path);
printf("\n");
if (!vflag)
printf("\n");
} else if (uflag) {
/* print resource usage? */
devinfo_foreach_rman(print_rman, NULL);