Questions tagged [usb]

Questions relating to the Raspberry Pi USB ports and specific Raspberry Pi USB devices and device interaction.

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Per-port power controlled USB hub with enough power for >=1 Raspberry Pi4 [closed]

I'm looking for a USB hub that provides enough power to run one (or more) Raspberry Pi4 without throttling. The USB hub should be "smart", so the USB host can control power per port. It ...
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Raspberry pi Zero 2 W Chitubox Mass Storage

I've been working to setup my rpi as a USB disk for my Flasforge 8.9 3D resin Printer. I've simultaneously succeeded and failed at this twice. In my first attempt, I used OTG (modprobe g_mass_storage) ...
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Raspberry Pi wont connect to Mac via ethernet cable an eth0 IP keeps changing

I have set up my pi as a WAP and I usually ssh into it via a ethernet cable connected to my Macbook. everything worked yesterday but when I booted it up today it won't ssh into my pi. I set up my ...
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USB GPS dongle doesn't return consecutive GSP traces

I used this USB GPS dongle to retrieve GPS traces of user's trip. Device configuration is successful. pi@raspberrypi:~ $ cgps -s ┌───────────────────────────────────────────┐┌──────────────────Seen 17/...
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How to connect USB CDC devices?

I have a Zebra MC3300XR SERIES RFID reader that support USB CDC, how can i read the scanned RFID programmatically in the raspberry pi? is it possible?!
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Does 2x singstar microphone with usb adapter work with raspberry pi 3?

I am planning to make my raspberry pi into a karaoke machine using probably either ultrastar or pikaraoke. There is 2x singstar microphones with usb adapter (used) selling in game shop near my place. ...
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Pi can't make WiFi, Bluetooth and USB device detection work and boots in command line every time. Is there a possible fix?

My Raspberry Pi 4B 8GB RAM has TwisterOS. A power outage happened and then the Pi boots in CLI only at first. I have to execute 'startx' everytime I boot. Then some of my settings were changed, like ...
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Missing USB Termination on CM4

we are facing USB connection issues with our CM4, which opened a new question concerning the usage of USB with it. To function properly, USB apparently needs Pullup/Pulldown resistors (see here and ...
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USB Boot only works intermittently with USD-SSD Adapter on Pi 3

I have a Pi3 with a Sabrient USB-SSD Adapter. The disk works fine and can be mounted. However, when I try to use it as a boot disk, it works only intermittently. Most of the time, there seems to be a ...
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Connecting to a u-blox7 USB GPS sensor

I am trying to connect to a U-Blox7 USB GPS sensor, following the steps outlined here. The device is detected, but not receiving GPS data. I am not not in a shielded area. Checking that the device is ...
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Possible to send data from a Pi Pico via USB while running CircuitPython?

I have a question on the interaction between Pi Pico, CircuitPython, and USB. I need a way to send a data stream from the Pico to another computer where it will be received on a USB port (it's the ...
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How do I set permissions on a `/dev/bus/usb` node?

I am getting an "Access Denied" on a USB port '/dev/bus/usb/001/004' on a Raspberry Pi 3B/4/4B that is running Raspbian Lite. When I issue the command: ls -l /dev/bus/001/004 I see the ...
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CM4 USB connection issues

We have rolled our own board for the CM4 and the problem occours when connecting an UMTS stick (Huawei E3531 HiLink) to USB. The CM4 starts to disconnect and reconnect the stick continuously. This ...
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Raspberry PI 4 Chia Farm 20 HDD 2 USB Hubs

I have a huge problem. I have 20 HDD and 2 usb 16slot hubs. And if I connect the two hubs than everything is fine and works fine if the total number of hdd is over 19 rasbian OS 64 bit disconnects all ...
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ch341-uart converter randomly disconnects from Raspberry

I'm facing problem, with ch341 uart chip. ch341 works normally at startup for about 120seconds. After that it disconnects. I'm attaching dmesg bellow. What it could be a problem? Tried with different ...
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Raspberry (OS) awfully unuseable with remote keyboard

I have this now tried with two different wireless keyboards and on Raspberry Pi 3 B+ and 4 (4GB) as well as the 400. All three with the latest update. When I want to use a remote keyboard (with a ...
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18 views

Touch screen PC keyboard input for shortcuts

In a nutshell thanks to an illness I have I would like a touchscreen that sends nothing more than keyboard commands straight to my PC like a peripheral. I have seen tons of Pi remote using SSH to send ...
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1answer
33 views

Media server without internet?

On my phone I have the Foobar2000 app which allows me to play music through media servers. On my raspberry pi I connected a USB stick and set up MiniDLNA. This works fine but I figured it requires an ...
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34 views

Booting Debian 10 Buster from Raspberry Pi 4B USB3.1 device

I have followed this YT video guide to be able to boot from a USB device on a Raspberry Pi 4B. It worked perfectly from my USB flash drive (#1) running Raspberry Pi OS. However, when I swapped out the ...
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19 views

Raspberry Pi doesn't recognize HP PSC 750xi Scanner

I have an old Pi-3 running Stretch. I have what apt-get install tells me is the latest version of everything installed. I plug in an old HP PSC 750xi All-In-One USB printer/scanner. The Pi recognizes ...
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USB power stay on after software shutdown?

When the RPi4 does a soft shutdown, it appears to leave power on to the USB ports. Is there a way to have the USB ports power off with the RPi? I’m building a project with a Waveshare touchscreen that ...
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32 views

What are requirements for mobile internet dongle working on Raspbery Pi?

I have mobile internet dongle ZTE MF833R with unlocked SIM card and it is working without any configuration if I plug it into Mac or Linux. If I plug it into Raspi I have # cat /etc/os-release ...
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Zero in g_mass_storage mode: modprobe only if connected to correct host?

This question references two old questions that never received any answers: Detect if a host is connected (gadget mode) Check if a host device is connected to Pi Zero gadget I am looking for a way ...
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Would it be possible to emulate a ps4 controller on USB-out

Would it be possible to create a PlayStation 4 controller USB interceptor of sorts for the purpose of using macros? The project’s model would look like this: • You are plugging PS4 controller in one ...
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Very slow USB flash drive on Raspberry Pi 3B+

Here are a few tests with an older Verbatim micro SD-card and the flash drive. # write speed test: sudo dd if=dev/zero of=temp.txt bs=1M count=1024 oflag=direct # Read speed test: sudo dd if=temp.txt ...
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Pi wont boot from external SSD with ecrypted LUKS container and LVM partition layout

I want to achieve a setup in which I boot from an external SSD harddrive in an USB Raid enclosure. The root directory lies in an encrypted luks container. The boot partition is unencrypted The problem ...
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raspberry pi zero 2 w usb drive connection to windows 10

I wanted to use a raspberry pi zero 2 w...as a usb drive stick on windows 10. So I got a raspberry pi zero 2 w...then I got this device to connect to my usb connection on my windows 10 box: https://...
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51 views

hard drive gets seen too late by the kernel after upgrading to debian bullseye

i just swapped out my old rpi sd card with raspbian stretch for one with raspian bullseye because stretch didnt gave me kernel 5.x and it felt outdated. everything worked so far except that my usb ...
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Turn off external harddrive bay

I have an IcyBox external hard drive bay with a fan, which is quite noisy. Seems like you cannot completely turn off the fan, even when the harddrives are all suspended. However, when I shutdown the ...
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1answer
32 views

How can I "test data" coming in to a Pi from an UART device connected via TTL-to-USB

I've got a Waveshare PN532 RFID reader/writer. I want to use it with a Pi 4B, but since it is already using a HAT with no free GPIO, I want to use it in UART mode, but not connecting to the GPIO pins ...
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Pi use monitor and projector at the same time

I have Raspberry Pi 3 Model B+. Now I use Pi with monitor using HDMI port but my project requere to have connected projector and to show static images on it. Projector will be controled with script(...
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1answer
27 views

SATA-to-USB adapter turns off HDMI output

When plugging in an SSD via SATA-to-USB adapter, it turns off HDMI output but I can still SSH into the pi. What is the issue? Model: Raspberry Pi 4B 8GB OS: Debian Bullseye aarch64 Kernel: 5.10.83-v8+
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Troubleshooting help? PiZ2 - USB not working

I just got a new Raspberry Pi Zero 2W, and setup a bootable 32G card no problem. On first boot, I see the Setup screen via HDMI, and I can SSH into the pi-user from my PC. But it is not responding at ...
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238 views

Serial/Ethernet Gadget Raspberry pi zero

I'm trying this 'ethernet mode' on raspberry pi zero with bullseye and bonjour installed on windows 10 following this guide Ethernet Gadget without success. My main goal is to get control on network ...
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1answer
37 views

Why did Pi-4's port layout change?

If you look at a Raspberry Pi 4 B from port side the side of the USB ports, it's a striking difference to previous B-models that USB block and ethernet jack have switched places. To me this is a ...
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41 views

Hostapd settings or better USB WiFi adapter to use for access point

I currently have my RPi 3B setup as an access point using a USB WiFi adapter with the USB id: Bus 001 Device 004: ID 148f:5572 Ralink Technology, Corp. RT5572 Wireless Adapter I am using the ...
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38 views

Recent Source for rtl8192su

I'm having trouble with a WiFi dongle that shows up on lsusb as 0bda:8172 It was working on my Raspberry Pi Model B Rev 2 running Buster until a kernel update. The current kernel is 5.10.63+ Nothing ...
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37 views

Failing to connect to Pi Zero W using headless SSH (USB Connection)

I'm trying (and failing repeatedly) to connect to a Pi Zero W using SSH over a USB connection. I know this question has been asked before, but trying the solutions brought up in those threads has ...
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57 views

DietPi USB Ethernet Gadget mode network breaks when enabling network sharing?

I'm trying to set up a raspberry Pi Model A (the original generation) as a USB Ethernet Gadget from DietPi (following these instructions), along with trying suggestions from several similar articles, ...
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33 views

WiFi stops working when a USB flash drive is connected

TL;DR: Raspberry Pi 4 Model B on-board WiFi drops when USB 3.0 flash drive is connected. When the flash drive is disconnected, WiFi starts working again. I'm running a Raspberry Pi 4 Model B Rev 1.2 ...
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How to use ctr + alt

So I am German and usually "ctrl + alt + Q" makes the @ (email) symbol. On my Raspberry Pi 4. However, after changing the keyboard language to German, I can't seem to access any characters ...
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56 views

Issue mounting a 1TB hard drive

I am turning my RPi into a Plex server. I have connected the drive using a powered USB hub, and the output from sudo fdisk -l returns with this on the end: Disk /dev/sda: 931.5 GiB, 1000204884992 ...
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1answer
60 views

CM4 - no touchscreen

I had a Raspberry Pi 4 with a generic 7” touchscreen and it worked fine but it broke so I copied the system (LineageOS) to CM4 module, enabled USB and it works. Beside the touch function for the ...
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55 views

Activate USB Ports on CM4

I have flashed to the emmc of my Raspy Pi CM4 the Rasp.-OS, it boots up and I can see the desktop image. By default the USB Ports seem to be disabled (Energy saving, not good decision IMO) and ssh is ...
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49 views

Using piclone with USB boot device?

I'm booting my Pi (4) from a USB SSD. But when I try to use piclone to back up the SSD (to a second USB SSD), it hangs - occasionally with file system errors that look like one of the two USB devices ...
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33 views

Optical drive freezes when reading media

When reading optical media, dmesg shows a message like one of the following: [ 115.013295] blk_update_request: I/O error, dev sr0, sector 343608 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 ...
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Why does usb enumeration create a bogus device in /dev and how do I get rid of it?

I have a USB modem that sometimes enumerates wrong and creates a false device in /dev. How do I remove that bogus device ? How do I force renumeration without rebooting ? When the modem works ...
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32 views

Wireless mouse only works in one USB port

I´m trying to use one of those cheap wireless mini keyboard/trackpad units with my Raspberry Pi 3B. The device works well if plugged in any PC port and - if I plug the receiver in the right USB port (...
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15 views

USB3 ssd mkfs.xfs not working from PI, working from debian

I've got the following device: https://tweakers.net/pricewatch/1260347/lc-power-usb-30-m2-ssd-enclosure-zwart/specificaties/ (Dutch). It's a simple USB3.0 m2 SSD enclosure. When I run mkfs.xfs from a ...
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23 views

Raspberry Pi Zero W as a wi-fi adapter

I want to use my RPi Zero W as an wi-fi adapter for PC. Is there a way to do it and how to do it? I'm thinking connecting RPi Zero W to a wi-fi network, and pass the internet to the PC via USB(...

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