On 10/15/19 8:43 PM, pumahsu wrote:
> Export the Type-C cc orientation so that user space can
> get this information.
>
> Signed-off-by: pumahsu <puma...@google.com>
Hi,
what the * is cc orientation?
> ---
> Documentation/ABI/testing/sysfs-class-typec | 7 +++++++
> drivers/usb/typec/class.c | 11 +++++++++++
> 2 files changed, 18 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-class-typec
> b/Documentation/ABI/testing/sysfs-class-typec
> index d7647b258c3c..419f952c991d 100644
> --- a/Documentation/ABI/testing/sysfs-class-typec
> +++ b/Documentation/ABI/testing/sysfs-class-typec
> @@ -108,6 +108,13 @@ Contact: Heikki Krogerus
> <heikki.kroge...@linux.intel.com>
> Description:
> Revision number of the supported USB Type-C specification.
>
> +What: /sys/class/typec/<port>/cc_orientation
> +Date: September 2019
> +Contact: Puma Hsu <puma...@google.com>
> +Description:
> + Indicates which cc orientation is active now, or 0 when
> + nothing is connected.
> +
>
> USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
>
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 7d8805d9bf37..00edae63da8e 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -1238,6 +1238,16 @@ static ssize_t usb_power_delivery_revision_show(struct
> device *dev,
> }
> static DEVICE_ATTR_RO(usb_power_delivery_revision);
>
> +static ssize_t cc_orientation_show(struct device *dev,
> + struct device_attribute *attr,
> + char *buf)
> +{
> + struct typec_port *p = to_typec_port(dev);
> +
> + return sprintf(buf, "%d\n", typec_get_orientation(p));
> +}
> +static DEVICE_ATTR_RO(cc_orientation);
> +
> static struct attribute *typec_attrs[] = {
> &dev_attr_data_role.attr,
> &dev_attr_power_operation_mode.attr,
> @@ -1248,6 +1258,7 @@ static struct attribute *typec_attrs[] = {
> &dev_attr_usb_typec_revision.attr,
> &dev_attr_vconn_source.attr,
> &dev_attr_port_type.attr,
> + &dev_attr_cc_orientation.attr,
> NULL,
> };
> ATTRIBUTE_GROUPS(typec);
>
--
~Randy
