From 078ef067bca6725ab71c0c8d58112ae66097062f Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@hovoldconsulting.com>
Date: Wed, 13 Apr 2016 19:18:59 +0200
Subject: [PATCH] greybus: Documentation/sysfs: add example control devices
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Add control devices to the example sysfs tree.

Control devices are named

	<bus_id>-<module_id>.<intf_id>.ctrl

and expose attributes that are specific to the greybus interface type.
Specifically, dummy interfaces do not have a control device.

Currently, only the vendor and product strings extracted from the
manifest are exported.

A subtree of the example tree now looks as follows:

greybus1/
├── 1-5
│   ├── 1-5.5
│   │   ├── 1-5.5.2
│   │   │   ├── bundle_class
│   │   │   ├── bundle_id
│   │   │   └── state
│   │   ├── 1-5.5.ctrl
│   │   │   ├── product_string
│   │   │   └── vendor_string
│   │   ├── ddbl1_manufacturer_id
│   │   ├── ddbl1_product_id
│   │   ├── interface_id
│   │   ├── product_id
│   │   ├── serial_number
│   │   └── vendor_id
│   ├── 1-5.6
│   │   └── interface_id
│   ├── eject
│   ├── module_id
│   └── num_interfaces
└── 1-svc

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
---
 .../sysfs/greybus1/1-2/1-2.2/1-2.2.ctrl/product_string            | 0
 .../sysfs/greybus1/1-2/1-2.2/1-2.2.ctrl/vendor_string             | 0
 .../sysfs/greybus1/1-5/1-5.5/1-5.5.ctrl/product_string            | 0
 .../sysfs/greybus1/1-5/1-5.5/1-5.5.ctrl/vendor_string             | 0
 .../sysfs/greybus2/2-3/2-3.3/2-3.3.ctrl/product_string            | 0
 .../sysfs/greybus2/2-3/2-3.3/2-3.3.ctrl/vendor_string             | 0
 6 files changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 drivers/staging/greybus/Documentation/sysfs/greybus1/1-2/1-2.2/1-2.2.ctrl/product_string
 create mode 100644 drivers/staging/greybus/Documentation/sysfs/greybus1/1-2/1-2.2/1-2.2.ctrl/vendor_string
 create mode 100644 drivers/staging/greybus/Documentation/sysfs/greybus1/1-5/1-5.5/1-5.5.ctrl/product_string
 create mode 100644 drivers/staging/greybus/Documentation/sysfs/greybus1/1-5/1-5.5/1-5.5.ctrl/vendor_string
 create mode 100644 drivers/staging/greybus/Documentation/sysfs/greybus2/2-3/2-3.3/2-3.3.ctrl/product_string
 create mode 100644 drivers/staging/greybus/Documentation/sysfs/greybus2/2-3/2-3.3/2-3.3.ctrl/vendor_string

diff --git a/drivers/staging/greybus/Documentation/sysfs/greybus1/1-2/1-2.2/1-2.2.ctrl/product_string b/drivers/staging/greybus/Documentation/sysfs/greybus1/1-2/1-2.2/1-2.2.ctrl/product_string
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/drivers/staging/greybus/Documentation/sysfs/greybus1/1-2/1-2.2/1-2.2.ctrl/vendor_string b/drivers/staging/greybus/Documentation/sysfs/greybus1/1-2/1-2.2/1-2.2.ctrl/vendor_string
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/drivers/staging/greybus/Documentation/sysfs/greybus1/1-5/1-5.5/1-5.5.ctrl/product_string b/drivers/staging/greybus/Documentation/sysfs/greybus1/1-5/1-5.5/1-5.5.ctrl/product_string
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/drivers/staging/greybus/Documentation/sysfs/greybus1/1-5/1-5.5/1-5.5.ctrl/vendor_string b/drivers/staging/greybus/Documentation/sysfs/greybus1/1-5/1-5.5/1-5.5.ctrl/vendor_string
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/drivers/staging/greybus/Documentation/sysfs/greybus2/2-3/2-3.3/2-3.3.ctrl/product_string b/drivers/staging/greybus/Documentation/sysfs/greybus2/2-3/2-3.3/2-3.3.ctrl/product_string
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/drivers/staging/greybus/Documentation/sysfs/greybus2/2-3/2-3.3/2-3.3.ctrl/vendor_string b/drivers/staging/greybus/Documentation/sysfs/greybus2/2-3/2-3.3/2-3.3.ctrl/vendor_string
new file mode 100644
index 000000000000..e69de29bb2d1