sdio: add basic sysfs attributes (bcfe66e2) · Commits · 戴 / test

drivers/mmc/core/sdio_bus.c

+32 −0

Original line number	Diff line number	Diff line
		@@ -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 int sdio_bus_remove(struct device *dev)

		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,