do_set_channel
static boolean_t do_set_channel(int fd, const char *arg);
{CHANNEL, "channel", do_get_channel, do_set_channel, RW},
status = do_set_channel(handle, linkid, &channel);
status = do_set_channel(handle, linkid, &channel);
static dladm_status_t do_set_channel(dladm_handle_t, datalink_id_t,