sysfs-bus-typec (1934B)
1What: /sys/bus/typec/devices/.../active 2Date: July 2018 3Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com> 4Description: 5 Shows if the mode is active or not. The attribute can be used 6 for entering/exiting the mode. Entering/exiting modes is 7 supported as synchronous operation so write(2) to the attribute 8 does not return until the enter/exit mode operation has 9 finished. The attribute is notified when the mode is 10 entered/exited so poll(2) on the attribute wakes up. 11 Entering/exiting a mode will also generate uevent KOBJ_CHANGE. 12 13 Valid values are boolean. 14 15What: /sys/bus/typec/devices/.../description 16Date: July 2018 17Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com> 18Description: 19 Shows description of the mode. The description is optional for 20 the drivers, just like with the Billboard Devices. 21 22What: /sys/bus/typec/devices/.../mode 23Date: July 2018 24Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com> 25Description: 26 The index number of the mode returned by Discover Modes USB 27 Power Delivery command. Depending on the alternate mode, the 28 mode index may be significant. 29 30 With some alternate modes (SVIDs), the mode index is assigned 31 for specific functionality in the specification for that 32 alternate mode. 33 34 With other alternate modes, the mode index values are not 35 assigned, and can not be therefore used for identification. When 36 the mode index is not assigned, identifying the alternate mode 37 must be done with either mode VDO or the description. 38 39What: /sys/bus/typec/devices/.../svid 40Date: July 2018 41Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com> 42Description: 43 The Standard or Vendor ID (SVID) assigned by USB-IF for this 44 alternate mode. 45 46What: /sys/bus/typec/devices/.../vdo 47Date: July 2018 48Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com> 49Description: 50 Shows the VDO in hexadecimal returned by Discover Modes command 51 for this mode.