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mvp / uhubctl

uhubctl - USB hub per-port power control
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Supported hardware: Sabrent HB-BU10 #576

Closed AlfredoSequeida closed 1 month ago

AlfredoSequeida commented 1 month ago

output of uhubctl

Current status for hub 2-1.4.4 [0bda:0411 Generic USB3.2 Hub, USB 3.20, 4 ports, ppps]
  Port 1: 02a0 power 5gbps Rx.Detect
  Port 2: 02a0 power 5gbps Rx.Detect
  Port 3: 02a0 power 5gbps Rx.Detect
  Port 4: 02a0 power 5gbps Rx.Detect
Current status for hub 2-1.4 [0bda:0411 Generic USB3.2 Hub, USB 3.20, 4 ports, ppps]
  Port 1: 02a0 power 5gbps Rx.Detect
  Port 2: 02a0 power 5gbps Rx.Detect
  Port 3: 02a0 power 5gbps Rx.Detect
  Port 4: 0263 power 5gbps U3 enable connect [0bda:0411 Generic USB3.2 Hub, USB 3.20, 4 ports, ppps]
Current status for hub 2-1 [0bda:0411 Generic USB3.2 Hub, USB 3.20, 4 ports, ppps]
  Port 1: 02e0 power 5gbps Polling
  Port 2: 02a0 power 5gbps Rx.Detect
  Port 3: 02a0 power 5gbps Rx.Detect
  Port 4: 0263 power 5gbps U3 enable connect [0bda:0411 Generic USB3.2 Hub, USB 3.20, 4 ports, ppps]
Current status for hub 1-1.4.4 [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps]
  Port 1: 0100 power
  Port 2: 0100 power
  Port 3: 0100 power
  Port 4: 0100 power
Current status for hub 1-1.4 [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps]
  Port 1: 0100 power
  Port 2: 0100 power
  Port 3: 0100 power
  Port 4: 0507 power highspeed suspend enable connect [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps]
Current status for hub 1-1 [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps]
  Port 1: 0503 power
  Port 2: 0100 power
  Port 3: 0100 power
  Port 4: 0507 power highspeed suspend enable connect [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps]

Product page: https://sabrent.com/products/HB-BU10 10 ports, USB 3.2, switches on usb hub have to remain in the on position.

Note: VBUS working is undetermined (depending on the device plugged in). When testing, I plugged in a Pixel 3XL and switching a port off DOES stop the device from charging. However, plugging in a Galaxy S8 Plus and turning a port off DOES NOT stop the device from charging. Using the Ampere application, it looks like what is happening here is the port drops amps to between 10 and 20 mA when switched off and periodically increases/decreases. So my guess is that the Pixel 3XL decides this is too low and stops charging while the Galaxy s8 Plus decides the phone is charging, but at a very low amp rate. I am not sure if this is the expected behavior for VBUS. Additionally, this also explains why the Pixel 3XL does not stop charging right away after switching a port off. It takes a few seconds while the amps are dropping until the amps drop low enough that the charge controller decides to stop charging the battery.

mvp commented 1 month ago

  1. According to https://sabrent.com/products/HB-BU10, max supported speed is 5Gbps, which corresponds to USB 3.0 not 3.2 (see #447).

  2. Since this hub vbus behavior is not 100% reliable - seems like there is some trickle current even when port is off, I would err on a side of not including it to supported table.