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Include more information about the device in the devadded and

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devremoved events.  This reduces the races around these events.  We
now include the pnp info in both.  This lets one do more interesting
thigns with devd on device insertion.

Submitted by: Bernd Walter
This commit is contained in:
Warner Losh 2004-06-30 02:46:25 +00:00
parent 782ece3862
commit 37b4e4f471
1 changed files with 38 additions and 2 deletions
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40
sys/kern/subr_bus.c
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@ -617,7 +617,25 @@ bad:
static void
devadded(device_t dev)
{
devaddq("+", device_get_nameunit(dev), dev);
char *pnp = NULL;
char *tmp = NULL;
pnp = malloc(1024, M_BUS, M_NOWAIT);
if (pnp == NULL)
goto fail;
tmp = malloc(1024, M_BUS, M_NOWAIT);
if (tmp == NULL)
goto fail;
*pnp = '\0';
bus_child_pnpinfo_str(dev, pnp, 1024);
snprintf(tmp, 1024, "%s %s", device_get_nameunit(dev), pnp);
devaddq("+", tmp, dev);
fail:
if (pnp != NULL)
free(pnp, M_BUS);
if (tmp != NULL)
free(tmp, M_BUS);
return;
}
/*
@ -627,7 +645,25 @@ devadded(device_t dev)
static void
devremoved(device_t dev)
{
devaddq("-", device_get_nameunit(dev), dev);
char *pnp = NULL;
char *tmp = NULL;
pnp = malloc(1024, M_BUS, M_NOWAIT);
if (pnp == NULL)
goto fail;
tmp = malloc(1024, M_BUS, M_NOWAIT);
if (tmp == NULL)
goto fail;
*pnp = '\0';
bus_child_pnpinfo_str(dev, pnp, 1024);
snprintf(tmp, 1024, "%s %s", device_get_nameunit(dev), pnp);
devaddq("-", tmp, dev);
fail:
if (pnp != NULL)
free(pnp, M_BUS);
if (tmp != NULL)
free(tmp, M_BUS);
return;
}
/*