Questions tagged [usb-device]
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324 questions
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0 answers
40 views
Does USB storage populate /dev/disk/by-label later than other device classes (and has this changed)
First off this is happening on a Raspberry Pi5, so it MAY be Pi specific but it does not feel like that. I have a system with 3 physical devices: SD card HDD connected via USB NVME connected via USB (...
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0 answers
31 views
ACM and ECM not working for buildroot
I am working on a embedded project that uses Buildroot. I need my device to be a usbgadget which shares internet and a virtual UART to a host device . The host device a android device(or a linux ...
8 votes
5 answers
1k views
How to clearly indicate a device is not mounted
Is it a good idea to add an empty file, say a file called NOT_MOUNTED, into mountpoint directory when the backup storage device is not mounted? Or will this be confusing? Is a symlink better, that ...
0 votes
1 answer
62 views
USB mouse stopped working after plugging into a USB-C dock
So i bought an usb-c dock (jeswo), i plugged my usb mouse into that and it worked fine. I unplugged the dock, plugged into my steamdeck, played (worked fine) and then plugged back, my laptop did not ...
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0 answers
104 views
How do I debug USB device and determine what is causing errors?
I have two Ubuntu 22.04 systems. One is Intel the other Arm. I have them configured the same to interface to a QHYCCD camera. The device works flawlessly under Intel but is a mess under Arm. When ...
0 votes
1 answer
264 views
Questions on the 'evtest' command [closed]
I'm working on a project that aims to use a small (6-key keyboard) to control music played by mpd (and mpc) on a Raspberry Pi. Obviously I need to "capture" the keyboard inputs, and ...
1 vote
1 answer
120 views
Disconnected block device remains in /sys, is not seen as detected when re-connect
System is Linux Mint 21 based. My USBstick was receiving some files and after message "Do not disconnect" had disappeared I unplugged it. This time though waiting whirl remained in Disks GUI ...
1 vote
1 answer
195 views
How can I force Linux to recognize a USB 3.x device as 5gbps?
I have a USB 3 NVMe enclosure attached to an Intel Celeron N5100 mini-PC. As shown by the output of lsusb -t, Linux recognizes the enclosure as a 10Gbps device. $lsusb -t | grep uas |__ Port 001: ...
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108 views
USBipd crashing randomly - how to fix this?
I have a Raspberry Pi 3B with a radio dongle (Warema Stick) attached to it. This Raspberry Pi runs Raspberry Pi OS and I installed usbipd from the default package repository of Raspberry Pi OS. The ...
0 votes
1 answer
173 views
Adding a usb keyboard driver to a custom Linux firmware
I have a router running a custom Linux as firmware. I can ssh in and install packages via the entware repository. I’ve attached a keyboard to the USB port and I’d like to read the keyboard input. The ...
0 votes
0 answers
40 views
How to disable some of the interfaces provided by "Intel(R) RealSense(TM)" camera?
I have an Intel(R) RealSense(TM) Depth Camera 435. This camera exposes multiple interfaces. I'm only interested in one of the interfaces which produces RGB output. # ls /dev/video* /dev/video0 /dev/...
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1 answer
130 views
Are onboard hubs detected as USB root hubs or external devices?
I have connected an onboard hub to my microprocessor. The onboard hub is USB2514B and the microprocessor is a STM32MP1. I can specify the the connection to the onboard hub by using OHCI (Open Host ...
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0 answers
137 views
Ethernet on a USB-C hub not working on startup, but works if plugged in after boot
I have a USB-C hub with an Ethernet port. My laptop is a Dell XPS9560. It works perfectly if I plug in the device after booting the system. But if I plug it in and then boot the system, other USB ...
0 votes
1 answer
291 views
How to automount a flash drive in Debian?
I have an Orange Pi One with the Armbian OS. I want to use it to collect data from sensors 24/7. And be able to save the database to a flash drive. Considering the presence of only one USB port, as ...
0 votes
0 answers
288 views
Is it possible to interrupt the power supply of a USB port?
Is it possible on Debian 12, using only the core utilities, to interrupt the power supply of a USB port directly on the PC, So that I can turn the power supply on and off as needed? I don't mean ...