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greybus: serial number attribute added

This commit is contained in:
Greg Kroah-Hartman 2014-09-01 18:41:39 -07:00
parent b94295e050
commit 291f3b9e61
1 changed files with 32 additions and 1 deletions
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33
drivers/staging/greybus/core.c
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@ -169,7 +169,6 @@ static void greybus_module_release(struct device *dev)
}
static struct device_type greybus_module_type = {
.name = "greybus_module",
.release = greybus_module_release,
@ -222,8 +221,40 @@ static struct attribute_group function_addr_grp = {
.is_visible = function_attrs_are_visible,
};
#if 0
struct greybus_descriptor_module_id {
__le16 vendor;
__le16 product;
__le16 version;
__u8 vendor_stringid;
__u8 product_stringid;
};
#endif
/* Serial Number */
static ssize_t serial_number_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct greybus_device *gdev = to_greybus_device(dev);
return sprintf(buf, "%llX\n",
(unsigned long long)gdev->serial_number.serial_number);
}
static DEVICE_ATTR_RO(serial_number);
static struct attribute *serial_number_attrs[] = {
&dev_attr_serial_number.attr,
NULL,
};
static struct attribute_group serial_number_grp = {
.attrs = serial_number_attrs,
.is_visible = function_attrs_are_visible,
};
static const struct attribute_group *greybus_module_groups[] = {
&function_addr_grp,
&serial_number_grp,
NULL,
};