// force link down, end channels and generate all events
link_t link_down(link_t link)
{
if(!link) return NULL;
LOG("forcing link down for %s",hashname_short(link->id));
// generate down event if up
if(link_up(link))
{
e3x_exchange_down(link->x);
mesh_link(link->mesh, link);
}
// end all channels
chan_t c, cnext;
for(c = link->chans;c;c = cnext)
{
cnext = chan_next(c);
chan_err(c, "disconnected");
chan_process(c, 0);
}
// remove pipe
if(link->send_cb)
{
link->send_cb(link, NULL, link->send_arg); // notify jic
link->send_cb = NULL;
link->send_arg = NULL;
}
return NULL;
}
int chan_sysfs_create(struct dahdi_chan *chan)
{
char chan_name[32];
void *dummy;
int res = 0;
if (chan->channo >= 250)
return 0;
if (test_bit(DAHDI_FLAGBIT_DEVFILE, &chan->flags))
return 0;
snprintf(chan_name, sizeof(chan_name), "dahdi!%d", chan->channo);
dummy = (void *)MAKE_DAHDI_DEV(chan->channo, chan_name);
if (IS_ERR(dummy)) {
res = PTR_ERR(dummy);
chan_err(chan, "Failed creating sysfs device: %d\n",
res);
return res;
}
set_bit(DAHDI_FLAGBIT_DEVFILE, &chan->flags);
return 0;
}
