scsi: Export SCSI Inquiry data to sysfs (92e6246c) · Commits · 戴 / test

Export the RAW SCSI Inquiry to sysfs as binfile. This way the data can be used by userland without the need to have and ioctl or use the sg_inq tool. Here is an example of the provided data linux:~ # hexdump /sys/class/scsi_device/1\:0\:0\:0/device/inquiry 0000000 8005 3205 001f 0000 4551 554d 2020 2020 0000010 4551 554d 4420 4456 522d 4d4f 2020 2020 0000020 2e32 2e33 0000024 Signed-off-by:

Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by:

Hannes Reinecke <hare@suse.de> Reviewed-by:

Christoph Hellwig <hch@lst.de> Signed-off-by:

Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/scsi_sysfs.c

+24 −0

Original line number	Diff line number	Diff line
		@@ -773,6 +773,29 @@ static struct bin_attribute dev_attr_vpd_##_page = { \
		sdev_vpd_pg_attr(pg83);
		sdev_vpd_pg_attr(pg80);

		static ssize_t show_inquiry(struct file filep, struct kobject kobj,
		struct bin_attribute *bin_attr,
		char *buf, loff_t off, size_t count)
		{
		struct device *dev = container_of(kobj, struct device, kobj);
		struct scsi_device *sdev = to_scsi_device(dev);

		if (!sdev->inquiry)
		return -EINVAL;

		return memory_read_from_buffer(buf, count, &off, sdev->inquiry,
		sdev->inquiry_len);
		}

		static struct bin_attribute dev_attr_inquiry = {
		.attr = {
		.name = "inquiry",
		.mode = S_IRUGO,
		},
		.size = 0,
		.read = show_inquiry,
		};

		static ssize_t
		show_iostat_counterbits(struct device dev, struct device_attribute attr,
		char *buf)
		@@ -957,6 +980,7 @@ static struct attribute *scsi_sdev_attrs[] = {
		static struct bin_attribute *scsi_sdev_bin_attrs[] = {
		&dev_attr_vpd_pg83,
		&dev_attr_vpd_pg80,
		&dev_attr_inquiry,
		NULL
		};
		static struct attribute_group scsi_sdev_attr_group = {

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