Switch port on active hub

[sralus]

Hello I have a Raspberry 4 with several USB devices. I have an Activeb USB3 HUB on the lower USB 3.0 port. https://www.amazon.de/CSL-Verteiler-Ultrabook-Tablet-PC-bus-powered/dp/B01K7RR3W8/ref=asc_df_B01K7RR3W8/?tag=googshopde-21&linkCode=df0&hvadid=308897333482&hvpos=&hvnetw=g&hvrand=9424246316756416189&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9043746&hvtargid=pla-562378000734&psc=1&th=1&psc=1&tag=&ref=&adgrpid=61522440175&hvpone=&hvptwo=&hvadid=308897333482&hvpos=&hvnetw=g&hvrand=9424246316756416189&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9043746&hvtargid=pla-562378000734 I connected a ESP32 to it. This connects to my JK-BMS (battery management) via Bluetooth. Every now and then I have to restart the ESP32 because the Bluetooth connection breaks down. If I could now briefly switch the USB port on/off using uhubctl, that would be great!! Unfortunately, I don't know how to access the USB port of the ESP32 directly. The device is this one: Port 2: 0103 power enable connect [10c4:ea60 Silicon Labs CP2102 USB to UART Bridge Controller 0001]

Current status for hub 2-2 [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: 0203 power 5gbps U0 enable connect [0bda:9210 ULT-Best Best USB Device 012938000FA5] Current status for hub 2 [1d6b:0003 Linux 6.1.21-v8+ xhci-hcd xHCI Host Controller 0000:01:00.0, USB 3.00, 4 ports, ppps] Port 1: 02a0 power 5gbps Rx.Detect Port 2: 0203 power 5gbps U0 enable connect [0bda:0411 Generic USB3.2 Hub, USB 3.20, 4 ports, ppps] Port 3: 02a0 power 5gbps Rx.Detect Port 4: 02a0 power 5gbps Rx.Detect Current status for hub 1-1.2 [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps] Port 1: 0100 power Port 2: 0103 power enable connect [10c4:ea60 Silicon Labs CP2102 USB to UART Bridge Controller 0001] Port 3: 0103 power enable connect [0403:6001 FTDI FT232R USB UART B0004YM7] Port 4: 0100 power Current status for hub 1-1 [2109:3431 USB2.0 Hub, USB 2.10, 4 ports, ppps] Port 1: 0100 power Port 2: 0503 power highspeed enable connect [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps] Port 3: 0303 power lowspeed enable connect [0665:5161] Port 4: 0303 power lowspeed enable connect [0665:5161] Current status for hub 1 [1d6b:0002 Linux 6.1.21-v8+ xhci-hcd xHCI Host Controller 0000:01:00.0, USB 2.00, 1 ports, ppps] Port 1: 0503 power highspeed enable connect [2109:3431 USB2.0 Hub, USB 2.10, 4 ports, ppps] ` sudo lsusb -v

Bus 002 Device 003: ID 0bda:9210 Realtek Semiconductor Corp. RTL9210 M.2 NVME Adapter Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 3.20 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 9 idVendor 0x0bda Realtek Semiconductor Corp. idProduct 0x9210 RTL9210 M.2 NVME Adapter bcdDevice 20.01 iManufacturer 1 ULT-Best iProduct 2 Best USB Device iSerial 3 012938000FA5 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0079 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 896mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 1 bNumEndpoints 4 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 98 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 MaxStreams 32 Data-in pipe (0x03) Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 MaxStreams 32 Data-out pipe (0x04) Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 MaxStreams 32 Status pipe (0x02) Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 0 Command pipe (0x01) Binary Object Store Descriptor: bLength 5 bDescriptorType 15 wTotalLength 0x002a bNumDeviceCaps 3 USB 2.0 Extension Device Capability: bLength 7 bDescriptorType 16 bDevCapabilityType 2 bmAttributes 0x00000006 BESL Link Power Management (LPM) Supported SuperSpeed USB Device Capability: bLength 10 bDescriptorType 16 bDevCapabilityType 3 bmAttributes 0x00 wSpeedsSupported 0x000e Device can operate at Full Speed (12Mbps) Device can operate at High Speed (480Mbps) Device can operate at SuperSpeed (5Gbps) bFunctionalitySupport 1 Lowest fully-functional device speed is Full Speed (12Mbps) bU1DevExitLat 10 micro seconds bU2DevExitLat 2047 micro seconds SuperSpeedPlus USB Device Capability: bLength 20 bDescriptorType 16 bDevCapabilityType 10 bmAttributes 0x00000001 Sublink Speed Attribute count 1 Sublink Speed ID count 0 wFunctionalitySupport 0x1100 bmSublinkSpeedAttr[0] 0x000a4030 Speed Attribute ID: 0 10Gb/s Symmetric RX SuperSpeedPlus bmSublinkSpeedAttr[1] 0x000a40b0 Speed Attribute ID: 0 10Gb/s Symmetric TX SuperSpeedPlus can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0000 (Bus Powered)

Bus 002 Device 002: ID 0bda:0411 Realtek Semiconductor Corp. Hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 3.20 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 3 bMaxPacketSize0 9 idVendor 0x0bda Realtek Semiconductor Corp. idProduct 0x0411 Hub bcdDevice 1.01 iManufacturer 1 Generic iProduct 2 USB3.2 Hub iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x001f bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 96mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 19 Transfer Type Interrupt Synch Type None Usage Type Feedback wMaxPacketSize 0x0002 1x 2 bytes bInterval 8 bMaxBurst 0 Hub Descriptor: bLength 12 bDescriptorType 42 nNbrPorts 4 wHubCharacteristic 0x0009 Per-port power switching Per-port overcurrent protection bPwrOn2PwrGood 0 * 2 milli seconds bHubContrCurrent 8 milli Ampere bHubDecLat 0.2 micro seconds wHubDelay 3202 nano seconds DeviceRemovable 0x00 Hub Port Status: Port 1: 0000.02a0 lowspeed L1 Port 2: 0000.02a0 lowspeed L1 Port 3: 0000.02a0 lowspeed L1 Port 4: 0000.0203 lowspeed enable connect Binary Object Store Descriptor: bLength 5 bDescriptorType 15 wTotalLength 0x002a bNumDeviceCaps 3 USB 2.0 Extension Device Capability: bLength 7 bDescriptorType 16 bDevCapabilityType 2 bmAttributes 0x0000f41e BESL Link Power Management (LPM) Supported BESL value 1024 us Deep BESL value 61440 us SuperSpeed USB Device Capability: bLength 10 bDescriptorType 16 bDevCapabilityType 3 bmAttributes 0x00 wSpeedsSupported 0x000e Device can operate at Full Speed (12Mbps) Device can operate at High Speed (480Mbps) Device can operate at SuperSpeed (5Gbps) bFunctionalitySupport 1 Lowest fully-functional device speed is Full Speed (12Mbps) bU1DevExitLat 10 micro seconds bU2DevExitLat 1023 micro seconds Container ID Device Capability: bLength 20 bDescriptorType 16 bDevCapabilityType 4 bReserved 0 ContainerID {20b9cde5-7039-e011-a935-0002a5d5c51b} can't get debug descriptor: Resource temporarily unavailable Device Status: 0x000d Self Powered U1 Enabled U2 Enabled

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 3.00 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 3 bMaxPacketSize0 9 idVendor 0x1d6b Linux Foundation idProduct 0x0003 3.0 root hub bcdDevice 6.01 iManufacturer 3 Linux 6.1.21-v8+ xhci-hcd iProduct 2 xHCI Host Controller iSerial 1 0000:01:00.0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x001f bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 12 bMaxBurst 0 Hub Descriptor: bLength 12 bDescriptorType 42 nNbrPorts 4 wHubCharacteristic 0x0009 Per-port power switching Per-port overcurrent protection bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 0 milli Ampere bHubDecLat 0.0 micro seconds wHubDelay 0 nano seconds DeviceRemovable 0x00 Hub Port Status: Port 1: 0000.02a0 5Gbps power Rx.Detect Port 2: 0000.0203 5Gbps power U0 enable connect Port 3: 0000.02a0 5Gbps power Rx.Detect Port 4: 0000.02a0 5Gbps power Rx.Detect Binary Object Store Descriptor: bLength 5 bDescriptorType 15 wTotalLength 0x000f bNumDeviceCaps 1 SuperSpeed USB Device Capability: bLength 10 bDescriptorType 16 bDevCapabilityType 3 bmAttributes 0x02 Latency Tolerance Messages (LTM) Supported wSpeedsSupported 0x0008 Device can operate at SuperSpeed (5Gbps) bFunctionalitySupport 1 Lowest fully-functional device speed is Full Speed (12Mbps) bU1DevExitLat 4 micro seconds bU2DevExitLat 231 micro seconds can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered

Bus 001 Device 006: ID 0665:5161 Cypress Semiconductor USB to Serial Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0665 Cypress Semiconductor idProduct 0x5161 USB to Serial bcdDevice 0.02 iManufacturer 3 iProduct 1 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0022 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 27 Report Descriptors: UNAVAILABLE Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 12 can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0000 (Bus Powered)

Bus 001 Device 004: ID 0665:5161 Cypress Semiconductor USB to Serial Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0665 Cypress Semiconductor idProduct 0x5161 USB to Serial bcdDevice 0.02 iManufacturer 3 iProduct 1 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0022 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 27 Report Descriptors: UNAVAILABLE Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 12 can't get debug descriptor: Resource temporarily unavailable cannot read device status, Resource temporarily unavailable (11)

Bus 001 Device 007: ID 0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0403 Future Technology Devices International, Ltd idProduct 0x6001 FT232 Serial (UART) IC bcdDevice 6.00 iManufacturer 1 FTDI iProduct 2 FT232R USB UART iSerial 3 B0004YM7 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0020 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 90mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 2 FT232R USB UART Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 can't get device qualifier: Resource temporarily unavailable can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0000 (Bus Powered)

Bus 001 Device 005: ID 10c4:ea60 Silicon Labs CP210x UART Bridge Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x10c4 Silicon Labs idProduct 0xea60 CP210x UART Bridge bcdDevice 1.00 iManufacturer 1 Silicon Labs iProduct 2 CP2102 USB to UART Bridge Controller iSerial 3 0001 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0020 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 2 CP2102 USB to UART Bridge Controller Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Status: 0x0000 (Bus Powered)

Bus 001 Device 003: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.10 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 2 TT per port bMaxPacketSize0 64 idVendor 0x0bda Realtek Semiconductor Corp. idProduct 0x5411 RTS5411 Hub bcdDevice 1.01 iManufacturer 1 Generic iProduct 2 USB2.1 Hub iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0029 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 1 Single TT iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0001 1x 1 bytes bInterval 12 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 2 TT per port iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0001 1x 1 bytes bInterval 12 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 4 wHubCharacteristic 0x00a9 Per-port power switching Per-port overcurrent protection TT think time 16 FS bits Port indicators bPwrOn2PwrGood 0 * 2 milli seconds bHubContrCurrent 100 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0103 power enable connect Port 3: 0000.0103 power enable connect Port 4: 0000.0100 power Binary Object Store Descriptor: bLength 5 bDescriptorType 15 wTotalLength 0x002a bNumDeviceCaps 3 USB 2.0 Extension Device Capability: bLength 7 bDescriptorType 16 bDevCapabilityType 2 bmAttributes 0x0000f41e BESL Link Power Management (LPM) Supported BESL value 1024 us Deep BESL value 61440 us SuperSpeed USB Device Capability: bLength 10 bDescriptorType 16 bDevCapabilityType 3 bmAttributes 0x00 wSpeedsSupported 0x000e Device can operate at Full Speed (12Mbps) Device can operate at High Speed (480Mbps) Device can operate at SuperSpeed (5Gbps) bFunctionalitySupport 1 Lowest fully-functional device speed is Full Speed (12Mbps) bU1DevExitLat 10 micro seconds bU2DevExitLat 1023 micro seconds Container ID Device Capability: bLength 20 bDescriptorType 16 bDevCapabilityType 4 bReserved 0 ContainerID {20b9cde5-7039-e011-a935-0002a5d5c51b} can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered

Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.10 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x2109 VIA Labs, Inc. idProduct 0x3431 Hub bcdDevice 4.21 iManufacturer 0 iProduct 1 USB2.0 Hub iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0019 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0001 1x 1 bytes bInterval 12 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 4 wHubCharacteristic 0x00e0 Ganged power switching Ganged overcurrent protection TT think time 32 FS bits Port indicators bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 100 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0503 highspeed power enable connect Port 3: 0000.0303 lowspeed power enable connect Port 4: 0000.0303 lowspeed power enable connect Binary Object Store Descriptor: bLength 5 bDescriptorType 15 wTotalLength 0x002a bNumDeviceCaps 3 USB 2.0 Extension Device Capability: bLength 7 bDescriptorType 16 bDevCapabilityType 2 bmAttributes 0x00000002 HIRD Link Power Management (LPM) Supported SuperSpeed USB Device Capability: bLength 10 bDescriptorType 16 bDevCapabilityType 3 bmAttributes 0x00 wSpeedsSupported 0x000e Device can operate at Full Speed (12Mbps) Device can operate at High Speed (480Mbps) Device can operate at SuperSpeed (5Gbps) bFunctionalitySupport 1 Lowest fully-functional device speed is Full Speed (12Mbps) bU1DevExitLat 4 micro seconds bU2DevExitLat 231 micro seconds Container ID Device Capability: bLength 20 bDescriptorType 16 bDevCapabilityType 4 bReserved 0 ContainerID {30eef35c-07d5-2549-b001-802d79434c30} can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0002 2.0 root hub bcdDevice 6.01 iManufacturer 3 Linux 6.1.21-v8+ xhci-hcd iProduct 2 xHCI Host Controller iSerial 1 0000:01:00.0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0019 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 12 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 1 wHubCharacteristic 0x0009 Per-port power switching Per-port overcurrent protection TT think time 8 FS bits bPwrOn2PwrGood 10 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x02 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0503 highspeed power enable connect can't get device qualifier: Resource temporarily unavailable can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered `

Which command should I enter for this?

Thank you in advance

[mvp]

This should work as long as your hub supports power switching (not a given):

uhubctl -l 1-1.2 -p 2 -a 0

Please read documentation, it should have all quirks explained.

[sralus]

Thank you for the info! I sent the comand and got this output:

sudo uhubctl -l 1-1.2 -p 2 -a 0 Current status for hub 2-2 [0bda:0411 Generic USB3.2 Hub, USB 3.20, 4 ports, ppps] Port 2: 02a0 power 5gbps Rx.Detect Sent power off request New status for hub 2-2 [0bda:0411 Generic USB3.2 Hub, USB 3.20, 4 ports, ppps] Port 2: 00a0 off Current status for hub 1-1.2 [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps] Port 2: 0103 power enable connect [10c4:ea60 Silicon Labs CP2102 USB to UART Bridge Controller 0001] Sent power off request New status for hub 1-1.2 [0bda:5411 Generic USB2.1 Hub, USB 2.10, 4 ports, ppps] Port 2: 0000 off

Unfortunately the USB connection remains active, so the ESP32 on the USB port does not restart. So my USB hub doesn't support power switching? Is it possible to switch only one USB 3.0 port directly on the Raspberry? Thank you in advance

[mvp]

I'm not sure why it doesn't work for you. Chances are that your hub doesn't support turning off power at the hardware level.

Unfortunately, Raspberry Pi hardware only supports turning USB ports off and on all at once, not individually. As explained in FAQ, to solve this, you can buy any USB hub listed in the table of supported devices - all of them should work.

If you are interested in specifically Raspberry Pi 4B support, there is an excellent option: UUGear Mega4. It was designed for RPi4B to specifically support uhubctl operation on all its 4 ports individually. It also supports stacking on itself if you need more ports.

I have Mega4 in my possession, and can attest it works perfectly.