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Subject[PATCH 116/117] Staging: hv: vmbus: Add code to display modalias attribute
Date
Add code to display modalias attribute.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
---
drivers/staging/hv/vmbus_drv.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index f271e8d..433be51 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -113,6 +113,14 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
if (!strcmp(dev_attr->attr.name, "class_id")) {
return sprintf(buf, "%s\n",
hv_get_devtype_name(&device_info.chn_type));
+ } else if (!strcmp(dev_attr->attr.name, "modalias")) {
+ int i;
+ char alias_name[((sizeof(struct hv_vmbus_device_id) + 1)) * 2];
+
+ for (i = 0; i < (sizeof(struct hv_vmbus_device_id) * 2); i += 2)
+ sprintf(&alias_name[i], "%02x",
+ hv_dev->dev_type.b[i/2]);
+ return sprintf("vmbus:%s\n", alias_name);
} else if (!strcmp(dev_attr->attr.name, "state")) {
return sprintf(buf, "%d\n", device_info.chn_state);
} else if (!strcmp(dev_attr->attr.name, "id")) {
@@ -167,6 +175,7 @@ static struct device_attribute vmbus_device_attrs[] = {
__ATTR(id, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(state, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL),
+ __ATTR(modalias, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(monitor_id, S_IRUGO, vmbus_show_device_attr, NULL),

__ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
--
1.7.4.1


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