[PATCH 2.6.14-rc4-git] s390, ccw - export modalias

[Bastian Blank <bastian@waldi.eu.org>]

This patch exports modalias for ccw devices.

Signed-off-by: Bastian Blank <waldi@debian.org>

---

 drivers/s390/cio/device.c |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -252,6 +252,23 @@ cutype_show (struct device *dev, struct 
 }
 
 static ssize_t
+modalias_show (struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct ccw_device *cdev = to_ccwdev(dev);
+	struct ccw_device_id *id = &(cdev->id);
+	int ret;
+
+	ret = sprintf(buf, "ccw:t%04Xm%02x",
+			id->cu_type, id->cu_model);
+	if (id->dev_type != 0)
+		ret += sprintf(buf + ret, "dt%04Xdm%02X\n",
+				id->dev_type, id->dev_model);
+	else
+		ret += sprintf(buf + ret, "dtdm\n");
+	return ret;
+}
+
+static ssize_t
 online_show (struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct ccw_device *cdev = to_ccwdev(dev);
@@ -448,6 +465,7 @@ static DEVICE_ATTR(chpids, 0444, chpids_
 static DEVICE_ATTR(pimpampom, 0444, pimpampom_show, NULL);
 static DEVICE_ATTR(devtype, 0444, devtype_show, NULL);
 static DEVICE_ATTR(cutype, 0444, cutype_show, NULL);
+static DEVICE_ATTR(modalias, 0444, modalias_show, NULL);
 static DEVICE_ATTR(online, 0644, online_show, online_store);
 extern struct device_attribute dev_attr_cmb_enable;
 static DEVICE_ATTR(availability, 0444, available_show, NULL);
@@ -471,6 +489,7 @@ subchannel_add_files (struct device *dev
 static struct attribute * ccwdev_attrs[] = {
 	&dev_attr_devtype.attr,
 	&dev_attr_cutype.attr,
+	&dev_attr_modalias.attr,
 	&dev_attr_online.attr,
 	&dev_attr_cmb_enable.attr,
 	&dev_attr_availability.attr,

-- 
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