sdio: add basic sysfs attributes
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index c834f515..129f071 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -23,6 +23,37 @@
#define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev)
#define to_sdio_driver(d) container_of(d, struct sdio_driver, drv)
+/* show configuration fields */
+#define sdio_config_attr(field, format_string) \
+static ssize_t \
+field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct sdio_func *func; \
+ \
+ func = dev_to_sdio_func (dev); \
+ return sprintf (buf, format_string, func->field); \
+}
+
+sdio_config_attr(class, "0x%02x\n");
+sdio_config_attr(vendor, "0x%04x\n");
+sdio_config_attr(device, "0x%04x\n");
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sdio_func *func = dev_to_sdio_func (dev);
+
+ return sprintf(buf, "sdio:c%02Xv%04Xd%04X\n",
+ func->class, func->vendor, func->device);
+}
+
+struct device_attribute sdio_dev_attrs[] = {
+ __ATTR_RO(class),
+ __ATTR_RO(vendor),
+ __ATTR_RO(device),
+ __ATTR_RO(modalias),
+ __ATTR_NULL,
+};
+
static const struct sdio_device_id *sdio_match_one(struct sdio_func *func,
const struct sdio_device_id *id)
{
@@ -117,6 +148,7 @@
static struct bus_type sdio_bus_type = {
.name = "sdio",
+ .dev_attrs = sdio_dev_attrs,
.match = sdio_bus_match,
.uevent = sdio_bus_uevent,
.probe = sdio_bus_probe,