Questions tagged [usb-hub]

An USB hub is a device that expands a single USB port into multiple ports, thus allowing to connect more devices to a host system. The USB&LAN controller (LAN9512) acts as on on-board USB hub on the Raspberry Pi (except Pi Zero).

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RPi4B & miniDLNA-why is one drive accessible and the other not? (usb drives on a powered hub)

I have set up a Raspberry Pi 4B/2gb as a media server using miniDLNA. An Amazon Basics powered hub with two drives attached, has been installed. One drive is 500gb and has two partitions, one a ...
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Raspberry PI4, Ubuntu 20.04.3 LTS - HDDs unmounting with error

I have a PI4 with 8Gb RAM setup with 2xIcy Box IB-AC6110 (10Ports). One is having 10 external HDDs and another 6. When I plug them to PI's USB3 ports (in total, it has 2), I automatically lose all of ...
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Can I use the usb pins on the pi cm4 directly?

I'm designing my own CM4 breakout board. If I only need one usb device, can I use the usb pins on the pi cm4 directly without the multiplexer chips?
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USB2514B-I/M2 alternative

I'm doing my own design based off of the CM4 carrier board, and it looks like the USB hub chip is not a good choice because it's out of stock at all the normal stores, and it's expensive at a few ...
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Sending RFID Data ( Keyboard Data) to a server

I am using Raspberry Pi 4 2GB Version and an USB RFID Reader like this (https://tr.aliexpress.com/item/32790685506.html) to take RFID Card data and I am determining an access control system with it. I ...
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Connect Raspberry Pi from Android App through USB

I'm building an android app where there's a requirement to show the temperature in the app from the sensor in Raspberry Pi Controller. For this purpose, I'm trying to connect my android device to ...
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1answer
37 views

share ethernet connexion to ethernet usb adaptor thanks to raspberry pi

I try to connect my ps4 with my vpn connexion without using the computer. I install the vpn on a raspberry pi 2 and i connect my raspberry to internet by the ethernet connexion. I use the raspberry ...
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Connecting hub to 1 USB port vs 2 USB ports?

The Pi 4B has 2x USB 3.0 ports. I have 2 choices to connect my hard drives: Using a single 10-port hub which connects to 1 USB 3.0 port. Using two 5-port hubs which connect to two USB 3.0 ports. ...
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External HDD causes SSD to not boot, but works fine when plugged in later

I have a Raspberry Pi 3 model B with no microSD card (the OTP bit is set). It can boot from an SSD connected via a USB2 SATA adapter. However, when a 3½-inch USB3 HDD is connected, the Pi doesn't boot....
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Remote access to Pi4 USB via LAN

Newbie Networking Question! I've learned to run my Pi4 headless, but... I want to access and control peripheral USB devices on my Pi4 (cameras, etc) from s/w apps on my host PC. Ideally, the Pi4 ...
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uhubctl not contiously switching power off

Running a RPI4B Buster, I am trying to shut down the usb ports for disabling screen and keyboard during startup. At the moment I am trying various variations of uhubctl -l 2 -a 0 The screen gets ...
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RPi4 USB-C hub not working on reboot

I have a LogiLink USB-C 3-Port Hub UA0315 plugged in Raspberry Pi 4 which is powered through external power supply. The hub is working when plugged in, however on reboot it is no longer detected until ...
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362 views

Usb not working on RPI4B [closed]

Keyboard and mouse and hub not working. I have acess via SSH and VNC though my laptop. The pi cannot see all that. I tried lsusb but nothing shows up except Bus 002 Device 001: ID 1d6b:0003 Linux ...
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Raspberry Pi 2B External HDD not detected

I'm trying to connect my external hard drive to my Raspberry Pi 2B, but I am not able to get it to show up. I am running the latest Raspbian, and I have updated my software. Running lsblk --fs, I only ...
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368 views

Is it possible for a Raspberry Pi Zero to act as both a Usb Gadget and a Usb Host?

I am currently working on a Raspberry Pi project, and found an amazing feature that I used many times on my LineageOs phone: Usb Gadget. I figured I could change the function of the Usb port to act as ...
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999 views

Disable USB driver on RPi Zero W

I am using a Raspberry Pi Zero W running Raspberry Pi OS (32-bit) Lite (Aug 2020). This is an IoT project where, I have a USB modem that makes my internet connection. When the modem is powered on it ...
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It's possible to power Raspberry Pi Zero though a USB Hub?

I want to use a Raspberry Pi with 2 USB connections. One connecting it to a computer and one connecting it to another device. This is possible, right? I just need to use a USB hub. But can I power up ...
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1answer
105 views

Setting USB current limit on Raspberry Pi 4

I have a Samsung Galaxy s8 that's connected to my Raspberry Pi in order to provide an internet connection. I'm looking to limit the harm done to the battery in the phone. Right now the battery in the ...
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2answers
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Raspberry doesn't recognize me disconnecting a USB device

I have a Raspberry Pi with an Amazonbasics 10-port USB hub which has a PPPS (port per port switching) function, basically, it can turn off power to any power via a tool called uhubctl. When I use ...
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464 views

How can Rpi4B use multiple on board and USB based UART / serial ports?

there. I am trying to use rpi 4 to access my own device through UART. However, the number of UART port isn't enough for me since I'm trying to access more device in same time. Thus, I want to know if ...
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How many usb devices does raspberry support? [duplicate]

Colleagues, hello, everyone. I have a raspberry that produces errors, 10 usb devices connected to it via hub. What's the diagnosis? I have the following equipment installed:raspberry pi4 model B 4 GB,...
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994 views

Error when connecting more than ten USB devices on Raspberry Pi 4 [duplicate]

What is the limit of USB devices in raspberry pi4? We have an external USB hub with its power supply and 10 devices fall off with errors. [Wed Mar 11 09:04:43 2020] usb 1-1.3.4-port1: Cannot enable. ...
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USB ports for 4G modules disappears after resetting the 4G module

I am using the EC25 quectel LTE module with Raspberry Pi 3 Model B. I can access the internet using serial pins of raspberry pi i.e. UART Tx and Rx. I can find ttyUSB[0-5] in ls \dev. I am sending AT ...
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Getting ftdi_sio ttyUSB0: failed to get modem status: -32

Iam using Raspberry pi 3b along with Xbee and Sixfab 3G/4G base sheild. getting ftdi_sio ttyUSB0: failed to get modem status: -32 usb usb1-port1: disabled by hub (EMI?), re-enabling... and also ...
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607 views

Using USB hub to power external hard drive

My Raspberry Pi can't produce enough power for WD external drive. I see that people recommend using a USB hub. My WD hard drive has only one input. If I connect it to a USB hub, how do I connect the ...
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64 views

Powered USB Hub Requirements

I dont plan on powering my Pi through a USB hub, but I do intend on hooking up some HDD's to a powered hub since everything I see so far seems to indicate that the pi cant power multiple HDD's. If ...
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The USB ports do not work anymore on my RPI4

Since yesterday, the USB ports of my RPI4 do not work. When I plug a usb device like a hard drive or a usb stick, I don't see any message about it in the logs and no new device in /dev. When I type ...
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93 views

Signal generator connected to raspberry pi via USB

Ido connect to the device from my raspberry pi and able to send commands. The power consumption of the SG is 2.5 W. That means that the current of usb port should be 2.5 / 5 = 500 mA. >>> ...
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164 views

Will this work out (usb hub + rpi zero w + Zishan Z1 DSD)?

Well, I want to connect Rpi zero W and Zishan Z1/2 DSD in one case, but with both devices working in one port connected to PC. (with working usb device in Rpi if in "portable" mode or in both ...
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Best way to power multiple Raspberry Pi 4s?

I ordered a few Raspberry Pi 4s, still under way, each with their own power supply, and I plan to get more, but when I have been previously able to power RPis with USB-hub, there's apparently no USB-C-...
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1answer
135 views

Powered USB3 Hub vs USB3 Y Power Cable

I have an issue that means I have to use a powered USB hub for the HDD that is attached to my RPI4 (long story). The hub just broke. My budget doesn't allow for a decent powered USB3 hub BUT does ...
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RPI4 won't boot with powered USB hub

I have an RPI4 running a Plex server, Pihole, etc etc. Power kept dropping while running certain tasks involving the attached HDD, so I started using a powered USB3 hub - problem solved. But now the ...
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Can I issue a command when a specific message issued in the syslog

I am having power problems with my USB devices which is proving difficult to resolve. However I can see on the syslog that there is a specific error message which shows there is a problem. What I ...
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1answer
303 views

LTE modules connected to USB hub cannot be accessed

The USB-HUB is self-powered, and two LTE modules are connected via USB-SERIAL to USB-HUB. We are facing a problem is that,The devices which are connected to USB-HUB can not be accessed. Is there any ...
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2answers
130 views

USB hub raspberryPi

I've been searching for a host-powered USB hubs with Raspberry Pi and discovered that most of the hubs are sort of built for the raspberry Pi device. I intend on using the USb port for serial ...
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Read/Write LAN9512 EEPROM

We are building a device around the Compute Module 3 and since it needs internet access we decided to go with the LAN9512 that was also used in the Raspberry Pi earlier. The LAN9512 requires an ...
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1answer
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Iot hub and rasberry pi [closed]

im makeing project but new in codeing , i want to connect cctv camera and ultra sonic sensor so if someone disobey the rule the camera will capture a photo and send it to online database and from the ...
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Pi with multiple HDDs from a powered hub

I am planning to use four 2.5hdd's with a pi3 B. I plan to use four 'sata to usb y' cables, with each usb power leg of the y cables plugged into a powered usb hub and each data leg into each of the pi'...
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USB hub is switched into USB1 mode with USB2 peripherals

I was wondering why my USB sd-cardreader operates that slow, see this benchmark: root@DietPi:~# hdparm -tT /dev/sda1 /dev/sda1: Timing cached reads: 4 MB in 2.00 seconds = 2.00 MB/sec ...
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Is it possible to have both hidraw0 and hidg0?

I would like to know if we can have both hidraw0 and hidg0 at the same time? Detailed description :- I have a barcode scanner, raspberry pi zero W, zero4u hub. Barcode scanner is connected to ...
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1answer
1k views

Could the Raspberry Pi be programmed to be a smart USB Hub?

I would like to get my Raspberry Pi (or some other single board computer) to act as a USB hub. So if I plug it into a (main)computer I would like to be able to have the Raspberry Pi appear to be a ...
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2answers
264 views

Choosing a USB hub

I've read that using self-powered USB hubs with Raspberry Pi tends to be problematic. My first discovery today is that I will prevent some problem buying a USB-2 hub. My second concern is to power on ...
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1answer
250 views

USB3 HDD not detected in RPi with Powered USB Hub

So we got a Powered USB Hub thinking we could use the Pi for a media share, but the HDD refuses to be detected. I saw this question asked countless times on Google and Stack Exchange, but they are all ...
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709 views

Rasberry pi Zero W USB Hub Driver?

Is it mandatory to use powered USB hub with pi-zero-w...? I've two good quality USB Hub, that works just fine with my windows PC. But, when I connect to the Pi, it supports only "one Device". While, ...
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748 views

Soldering devices to the USB ports

In this project the maker of the project desolders and removes two of the USB ports on the Pi and solders on a USB Hub to the pads at the bottom. I'd like to solder devices to the USB pads in the ...
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615 views

Is there a multiple USB to Ethernet hub?

I want to create a network of raspi 0's connected to Ethernet. Can I connect them all to one Ethernet wire via a USB hub? Thanks
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Power rpi with 2 ports from usb hub

Ok so I have not been able to find this specific question on the interwebs. I am looking for a USB hub that will power the pi and a few other things. I'm not concerned about the over all power rating ...
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2answers
1k views

Raspberry Pi USB hub can't connect keyboard and mouse at same time

I bought a cheap USB hub for a Raspberry Pi Zero: USB hub from AliExpress The problem is that I can't plug in the keyboard and mouse at the same time. Just one device is working and at one specific ...
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1answer
88 views

Can I get both power and data from an external drive with an integrated USB hub?

I want to connect a power-hungry external drive to my Raspberry Pi 3. Normally this would mean separate external power supplies for the Pi and the external drive, or else plugging both the drive and ...
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2answers
933 views

Is it possible to prevent the Pi from receiving power from a powered USB hub?

I have a Raspberry Pi 3 with an On/Off Shim from Pimoroni. If you're not familiar: it's basically a little device that gets soldered onto the first 12 GPIO pins and allows you to use a built-in (or ...