Bitfields for OpenHCI "HcRhDescriptorA" register |
| Bit | Description | |
|---|---|---|
|
31 - 24 |
"POTPGT" | power-on to power-good time in 2ms units |
|
23 - 13 |
reserved | |
|
12 |
"NOCP" | no over-current protection supported |
|
11 |
"OCPM" | over-current status reported per-port |
|
10 |
"DT" | device type - is root hub compound device? |
|
9 |
"NPS" | NoPowerSwitching -- ports are always powered up |
|
8 |
"PSM" | power-switching mode -- if set, each port powered individually |
|
7 - 0 |
"NDP" | number of downstream ports |
|
See Also: |