firewire: Export GUID as sysfs attribute. (bbd14945) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/firewire/fw-device.c

+13 −2

Original line number	Original line	Diff line number	Diff line
	@@ -348,8 +348,7 @@ static struct device_attribute fw_unit_attributes[] = {
	};		};

	static ssize_t		static ssize_t
	config_rom_show(struct device *dev,		config_rom_show(struct device dev, struct device_attribute attr, char *buf)
	struct device_attribute attr, char buf)
	{		{
	struct fw_device *device = fw_device(dev);		struct fw_device *device = fw_device(dev);

	@@ -358,8 +357,20 @@ config_rom_show(struct device *dev,
	return device->config_rom_length * 4;		return device->config_rom_length * 4;
	}		}

			static ssize_t
			guid_show(struct device dev, struct device_attribute attr, char *buf)
			{
			struct fw_device *device = fw_device(dev);
			u64 guid;

			guid = ((u64)device->config_rom[3] << 32) \| device->config_rom[4];

			return snprintf(buf, PAGE_SIZE, "0x%016llx\n", guid);
			}

	static struct device_attribute fw_device_attributes[] = {		static struct device_attribute fw_device_attributes[] = {
	__ATTR_RO(config_rom),		__ATTR_RO(config_rom),
			__ATTR_RO(guid),
	__ATTR_NULL,		__ATTR_NULL,
	};		};