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greybus: interface: Expose DDBL1 manufacturing and production id in sysfs 

These ids are already fetched from the SVC, but were never exposed to
sysfs. Userspace may be interested in using these values and hence these
must be exposed to it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Viresh Kumar 2015-12-22 22:04:34 +05:30 committed by Greg Kroah-Hartman
parent b32a5c5346
commit 0e9403a0fb
8 changed files with 20 additions and 0 deletions
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16
drivers/staging/greybus/Documentation/sysfs-bus-greybus
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@ -14,6 +14,22 @@ Description:
An Interface I on the bus N, where I is the 1-byte interface
ID.
What: /sys/bus/greybus/device/N-I/ddbl1_manufacturer_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Unipro Device Descriptor Block Level 1 manufacturer ID for the
greybus Interface.
What: /sys/bus/greybus/device/N-I/ddbl1_product_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Unipro Device Descriptor Block Level 1 product ID for the
greybus Interface.
What: /sys/bus/greybus/device/N-I/interface_id
Date: October 2015
KernelVersion: 4.XX

0
drivers/staging/greybus/Documentation/sysfs/greybus1/1-2/ddbl1_manufacturer_id Normal file
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0
drivers/staging/greybus/Documentation/sysfs/greybus1/1-2/ddbl1_product_id Normal file
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0
drivers/staging/greybus/Documentation/sysfs/greybus1/1-4/ddbl1_manufacturer_id Normal file
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0
drivers/staging/greybus/Documentation/sysfs/greybus1/1-4/ddbl1_product_id Normal file
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0
drivers/staging/greybus/Documentation/sysfs/greybus2/2-3/ddbl1_manufacturer_id Normal file
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0
drivers/staging/greybus/Documentation/sysfs/greybus2/2-3/ddbl1_product_id Normal file
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4
drivers/staging/greybus/interface.c
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@ -20,6 +20,8 @@ static ssize_t field##_show(struct device *dev, \
} \
static DEVICE_ATTR_RO(field)
gb_interface_attr(ddbl1_manufacturer_id, "0x%08x");
gb_interface_attr(ddbl1_product_id, "0x%08x");
gb_interface_attr(interface_id, "%u");
gb_interface_attr(vendor_id, "0x%08x");
gb_interface_attr(product_id, "0x%08x");
@ -27,6 +29,8 @@ gb_interface_attr(vendor_string, "%s");
gb_interface_attr(product_string, "%s");
static struct attribute *interface_attrs[] = {
&dev_attr_ddbl1_manufacturer_id.attr,
&dev_attr_ddbl1_product_id.attr,
&dev_attr_interface_id.attr,
&dev_attr_vendor_id.attr,
&dev_attr_product_id.attr,