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| author | Johan Hovold | 2015-11-25 15:59:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2015-11-26 00:27:06 +0100 |
| commit | a97015c9e99d8421b80cdf9652a456f4cd93fc1e (patch) | |
| tree | 6bf1367f603b3e9696e5d900d7f22cad8a155429 /drivers/staging/greybus | |
| parent | greybus: bundle: use hexadecimal notation for class attribute (diff) | |
| download | kernel-qcow2-linux-a97015c9e99d8421b80cdf9652a456f4cd93fc1e.tar.gz kernel-qcow2-linux-a97015c9e99d8421b80cdf9652a456f4cd93fc1e.tar.xz kernel-qcow2-linux-a97015c9e99d8421b80cdf9652a456f4cd93fc1e.zip | |
greybus: bundle: add bundle_id attribute
Add a bundle_id attribute for the interface-unique id of a bundle that
user space can use for matching.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus')
| -rw-r--r-- | drivers/staging/greybus/Documentation/sysfs-bus-greybus | 7 | ||||
| -rw-r--r-- | drivers/staging/greybus/bundle.c | 10 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/staging/greybus/Documentation/sysfs-bus-greybus b/drivers/staging/greybus/Documentation/sysfs-bus-greybus index 88ed2d8905cc..9329a31647cd 100644 --- a/drivers/staging/greybus/Documentation/sysfs-bus-greybus +++ b/drivers/staging/greybus/Documentation/sysfs-bus-greybus @@ -104,6 +104,13 @@ Contact: Greg Kroah-Hartman <greg@kroah.com> Description: The greybus class of the bundle B. +What: /sys/bus/greybus/device/N-I.B/bundle_id +Date: October 2015 +KernelVersion: 4.XX +Contact: Greg Kroah-Hartman <greg@kroah.com> +Description: + The interface-unique id of the bundle B. + What: /sys/bus/greybus/device/N-I.B/state Date: October 2015 KernelVersion: 4.XX diff --git a/drivers/staging/greybus/bundle.c b/drivers/staging/greybus/bundle.c index 61c9a6d68561..f746438bc962 100644 --- a/drivers/staging/greybus/bundle.c +++ b/drivers/staging/greybus/bundle.c @@ -18,6 +18,15 @@ static ssize_t bundle_class_show(struct device *dev, } static DEVICE_ATTR_RO(bundle_class); +static ssize_t bundle_id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct gb_bundle *bundle = to_gb_bundle(dev); + + return sprintf(buf, "%u\n", bundle->id); +} +static DEVICE_ATTR_RO(bundle_id); + static ssize_t state_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -49,6 +58,7 @@ static DEVICE_ATTR_RW(state); static struct attribute *bundle_attrs[] = { &dev_attr_bundle_class.attr, + &dev_attr_bundle_id.attr, &dev_attr_state.attr, NULL, }; |