diff options
| -rw-r--r-- | drivers/dahdi/xpp/card_pri.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/drivers/dahdi/xpp/card_pri.c b/drivers/dahdi/xpp/card_pri.c index 358e3bc..677bd6b 100644 --- a/drivers/dahdi/xpp/card_pri.c +++ b/drivers/dahdi/xpp/card_pri.c @@ -2261,7 +2261,43 @@ static DEVICE_ATTR_READER(pri_protocol_show, dev, buf) return len; } -static DEVICE_ATTR(pri_protocol, S_IRUGO, pri_protocol_show, NULL); +static DEVICE_ATTR_WRITER(pri_protocol_store, dev, buf, count) +{ + xpd_t *xpd; + enum pri_protocol new_protocol = PRI_PROTO_0; + int i; + int ret; + + BUG_ON(!dev); + xpd = dev_to_xpd(dev); + XPD_DBG(GENERAL, xpd, "%s\n", buf); + if (!xpd) + return -ENODEV; + i = strcspn(buf, " \r\n"); + if (i != 2) { + XPD_NOTICE(xpd, + "Protocol name '%s' has %d characters (should be 2). Ignored.\n", + buf, i); + return -EINVAL; + } + if (strnicmp(buf, "E1", 2) == 0) + new_protocol = PRI_PROTO_E1; + else if (strnicmp(buf, "T1", 2) == 0) + new_protocol = PRI_PROTO_T1; + else if (strnicmp(buf, "J1", 2) == 0) + new_protocol = PRI_PROTO_J1; + else { + XPD_NOTICE(xpd, + "Unknown PRI protocol '%s' (should be E1|T1|J1). Ignored.\n", + buf); + return -EINVAL; + } + ret = set_pri_proto(xpd, new_protocol); + return (ret < 0) ? ret : count; +} + +static DEVICE_ATTR(pri_protocol, S_IRUGO | S_IWUSR, pri_protocol_show, + pri_protocol_store); static DEVICE_ATTR_READER(pri_localloop_show, dev, buf) { |