| What: /sys/class/udc/<udc>/a_alt_hnp_support |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Indicates if an OTG A-Host supports HNP at an alternate port. |
| Users: |
| |
| What: /sys/class/udc/<udc>/a_hnp_support |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Indicates if an OTG A-Host supports HNP at this port. |
| Users: |
| |
| What: /sys/class/udc/<udc>/b_hnp_enable |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Indicates if an OTG A-Host enabled HNP support. |
| Users: |
| |
| What: /sys/class/udc/<udc>/current_speed |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Indicates the current negotiated speed at this port. |
| Users: |
| |
| What: /sys/class/udc/<udc>/is_a_peripheral |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Indicates that this port is the default Host on an OTG session |
| but HNP was used to switch roles. |
| Users: |
| |
| What: /sys/class/udc/<udc>/is_otg |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Indicates that this port support OTG. |
| Users: |
| |
| What: /sys/class/udc/<udc>/maximum_speed |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Indicates the maximum USB speed supported by this port. |
| Users: |
| |
| What: /sys/class/udc/<udc>/soft_connect |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Allows users to disconnect data pullup resistors thus causing a |
| logical disconnection from the USB Host. |
| Users: |
| |
| What: /sys/class/udc/<udc>/srp |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Allows users to manually start Session Request Protocol. |
| Users: |
| |
| What: /sys/class/udc/<udc>/state |
| Date: June 2011 |
| KernelVersion: 3.1 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Indicates current state of the USB Device Controller. Valid |
| states are: 'not-attached', 'attached', 'powered', |
| 'reconnecting', 'unauthenticated', 'default', 'addressed', |
| 'configured', and 'suspended'; however not all USB Device |
| Controllers support reporting all states. |
| Users: |
| |
| What: /sys/class/udc/<udc>/function |
| Date: June 2017 |
| KernelVersion: 4.13 |
| Contact: Felipe Balbi <balbi@kernel.org> |
| Description: |
| Prints out name of currently running USB Gadget Driver. |
| Users: |