[PATCH v3 1/2] usb: typec: Consolidate syfs ABI documentation

From: Prashant Malani
Date: Fri Oct 23 2020 - 17:44:04 EST


Both partner and cable have identity VDOs. These are listed separately
in the Documentation/ABI/testing/sysfs-class-typec. Factor these out
into a common location to avoid the duplication.

Signed-off-by: Prashant Malani <pmalani@xxxxxxxxxxxx>
---

Patch first introduced in v3.

Documentation/ABI/testing/sysfs-class-typec | 59 ++++++---------------
1 file changed, 17 insertions(+), 42 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
index b834671522d6..0f839fd022f1 100644
--- a/Documentation/ABI/testing/sysfs-class-typec
+++ b/Documentation/ABI/testing/sysfs-class-typec
@@ -134,42 +134,6 @@ Description:
Shows if the partner supports USB Power Delivery communication:
Valid values: yes, no

-What: /sys/class/typec/<port>-partner>/identity/
-Date: April 2017
-Contact: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
-Description:
- This directory appears only if the port device driver is capable
- of showing the result of Discover Identity USB power delivery
- command. That will not always be possible even when USB power
- delivery is supported, for example when USB power delivery
- communication for the port is mostly handled in firmware. If the
- directory exists, it will have an attribute file for every VDO
- in Discover Identity command result.
-
-What: /sys/class/typec/<port>-partner/identity/id_header
-Date: April 2017
-Contact: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
-Description:
- ID Header VDO part of Discover Identity command result. The
- value will show 0 until Discover Identity command result becomes
- available. The value can be polled.
-
-What: /sys/class/typec/<port>-partner/identity/cert_stat
-Date: April 2017
-Contact: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
-Description:
- Cert Stat VDO part of Discover Identity command result. The
- value will show 0 until Discover Identity command result becomes
- available. The value can be polled.
-
-What: /sys/class/typec/<port>-partner/identity/product
-Date: April 2017
-Contact: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
-Description:
- Product VDO part of Discover Identity command result. The value
- will show 0 until Discover Identity command result becomes
- available. The value can be polled.
-

USB Type-C cable devices (eg. /sys/class/typec/port0-cable/)

@@ -196,17 +160,28 @@ Description:
- type-c
- captive

-What: /sys/class/typec/<port>-cable/identity/
+
+USB Type-C partner/cable Power Delivery Identity objects
+
+NOTE: The following attributes will be applicable to both
+partner (e.g /sys/class/typec/port0-partner/) and
+cable (e.g /sys/class/typec/port0-cable/) devices. Consequently, the example file
+paths below are prefixed with "/sys/class/typec/<port>-{partner|cable}/" to
+reflect this.
+
+What: /sys/class/typec/<port>-{partner|cable}/identity/
Date: April 2017
Contact: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Description:
This directory appears only if the port device driver is capable
of showing the result of Discover Identity USB power delivery
command. That will not always be possible even when USB power
- delivery is supported. If the directory exists, it will have an
- attribute for every VDO returned by Discover Identity command.
+ delivery is supported, for example when USB power delivery
+ communication for the port is mostly handled in firmware. If the
+ directory exists, it will have an attribute file for every VDO
+ in Discover Identity command result.

-What: /sys/class/typec/<port>-cable/identity/id_header
+What: /sys/class/typec/<port>-{partner|cable}/identity/id_header
Date: April 2017
Contact: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Description:
@@ -214,7 +189,7 @@ Description:
value will show 0 until Discover Identity command result becomes
available. The value can be polled.

-What: /sys/class/typec/<port>-cable/identity/cert_stat
+What: /sys/class/typec/<port>-{partner|cable}/identity/cert_stat
Date: April 2017
Contact: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Description:
@@ -222,7 +197,7 @@ Description:
value will show 0 until Discover Identity command result becomes
available. The value can be polled.

-What: /sys/class/typec/<port>-cable/identity/product
+What: /sys/class/typec/<port>-{partner|cable}/identity/product
Date: April 2017
Contact: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Description:
--
2.29.0.rc1.297.gfa9743e501-goog