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

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20 views

Strange USB behaviour with PoE hat

This might be without PoE hat too but my device uses PoE hat. Everything was working great, I have two USB ports used on the Pi: a USB hub with a keyboard and mouse and a 256GB Pen Drive And that'...
1
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1answer
36 views

Cannot seem to write to usb drive using pi user

Really simple problem, I have run the following commands: sudo mkdir /media/usb sudo chown -R pi:pi /media/usb show chmod -R 775 /media/usb Checked everything and made sure that pi owned the ...
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1answer
30 views

cdc_subset: probe of 1-1.1:1.0 failed with error -22

I have a FreeAgent DockStarTM Network Adapter which is able to run an operating system loaded from an attached USB drive. I run debian Stretch OS with its rootfs partition on the USB storage. Using ...
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2answers
15 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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1answer
15 views

Multiple TTL sensors on serial RX GPIO 10

Is it possible to read more than one TTL sensor on serial RX GPIO 10? I know you can add multiple serial sensors on /dev/ttyUSBx Does the same apply to /dev/ttyAMAx ?
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0answers
39 views

Using Raspberry pi as USB bridge

I wanted to use my raspberry pi as USB bridge between multiple devices. We can assume that I want to connect my iPad which has POS software on it to my thermal printer. Most of star or Epson thermal ...
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0answers
35 views

Rpi 3 model B+ USB enable pin

I am using USB 3G modem with my RPi 3 modem B+. Modem gets freeze sometimes so i need to reset it. I was using https://askubuntu.com/questions/645/how-do-you-reset-a-usb-device-from-the-command-line ...
2
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1answer
42 views

Controlling an old APC UPS with a Raspberry Pi 3B using a USB 2.0 to RS232 Male DB9 Serial Cable

Is there a way of Controlling an old APC UPS with a Raspberry Pi 3B using a USB 2.0 to RS232 Male DB9 Serial Cable? There seems to be two apps that would be needed. One for the cable conversion from ...
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1answer
96 views

USBIP: cannot attach devices (Raspbian Stretch)

I have USBIP installed, and it seems to be working in so much as I list USB devices, but attempts to connect fail. I have tried with the raspberry pi (zero W) configured as server and as client, but ...
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0answers
21 views

CM3 - How can I use USB_OTG on carrier board? How does this differ from CMIO board?

Currently trying to figure out how to setup USB_OTG on the CM3 using my carrier board. I posted on the RPI forums and got an answer which was to connect pin 4 (ID) on a usb micro AB connector ...
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0answers
38 views

USB mount not able to auto mount external drive due to MTP error

I'm trying to auto mount external hard drives to raspberry pi B+ (raspbian stretch lite image) using usbmount (link). But auto mount fails with the below error saying the device is not MTP. Unlike ...
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1answer
71 views

USB RS232 turn on/off beamer

I'm streaming a video to a beamer. But I want it too turn it off after office hours. I found /opt/vc/bin/tvservice -o and /opt/vc/bin/tvservice -p to turn off the screen. But that does not turn off ...
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0answers
28 views

RPi3 's usb port fail

Mouse and keyboard does not work properly when connect to my pi3 modelB's usb port. It worked perfectly a day ago. But wifi dongle can process as usual. dmesg show below [ 3410.013515] usb 1-1.2: ...
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0answers
34 views

USB on Raspberry Pi Zero W not working

I brought out wires from the PP22 and PP23 USB pads on the rear side of Pi Zero W to an external connector. Also, took out wires from PP1 (5V) and PP6 (GND) for providing power to Pi Zero externally. ...
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3answers
82 views

Get the /dev/tty??? for raspberry pi

I'm connecting a usb to rs-485 to my raspberry pi. How do I know which /dev/ttyXXX does it correspond to? I'm using raspberry pi model b+ Update with goldilocks answer:
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0answers
23 views

My Pi seems to be duplicating my USB stick in the file manager

I formatted my USB stick and called it STORE-1 But after some time, File Manager showed me this: Before it was SETTINGS and STORE-1. Now access is denied to STORE-11 and STORE-1 and I can only use ...
2
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2answers
37 views

How can you detect if a USB device is powered via an USB Port?

I need to power a Raspberry Pi through the USB port of another computer. Is there any way to detect on the PC if the RPi is powered on? Running dmesg as well as lsusb commands on the PC didn't show ...
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1answer
29 views

Pi Zero system not seeing USB port

I’m a nooby who built a Pi Grrl Zero, and it was working fine. I could plug my mini keyboard dongle into the USB data port and it worked. Then I plugged in an audio adapter. That was a mistake! ...
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0answers
21 views

ALSA RPI - Can I create a virtual array of microphones using two different input devices?

I have two PS3 eye (each one has an array of 4 mics) and I was wondering if I could create a virtual microhpone array using ALSA to acquire and use the two devices as if it was one array with 8 ...
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0answers
24 views

SSH Tunnel Network interface to USB Interface

I want to SSH into my Raspberry Pi 3 B+ via a network interface, which can then SSH tunnel into another unix-based machine via USB Serial Interface. I am able to ssh into the RPI via network, but I ...
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0answers
94 views

Setting up Pi Zero W Wi-Fi through USB SSH

I am having lots of problems connecting my raspberry pi zero to wifi. I have followed a number of tutorials. 1. What I have tried This was my wpa_supplicant.conf file ctrl_interface=DIR=/var/run/...
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0answers
21 views

Receive HID Feature Report in USB Gadget mode

I have set up a RPi zero as a USB Gagdet and successfully send/receive hid reports from windows pc, but I am not able to receive or send HID Feature reports. The file /dev/hidg0 only reads HID reports,...
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0answers
17 views

USB Dongles worked on first boot okay but after restart it stopped working

I have a Raspberry Pi 3 Model B flashed with Raspbian by Etcher.io. When I booted it for the first time , I was playing some YouTube videos and it worked fine with keyboard and mouse. However, after ...
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0answers
36 views

autorun on flash drive when it's connected

I have a bash script that is on a flash drive that I would like to run automatically when the flash drive is connected to my Pi. I've seen instructions on how to do it in Ubuntu, but I can't find the ...
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1answer
48 views

Pi will not boot after unplugging external USB drive

I successfully mounted an external USB HD by editing the /etc/fstab file as detailed here, and everything worked great, until I tried booting up my Pi without the drive attached. The Pi refused to ...
1
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1answer
56 views

Problem with ethernet and usb controller after update/upgrade

I use a Raspberry pi 3 Model B Today I tried to update my Raspbian OS(installed with berryboot) version from 09.05.2017 to the latest version. I was ssh'ed into the raspbian pi user(root) and typed: ...
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0answers
27 views

Is it possible to “convert” from GPIO to usb?

I have an the RFID-RC522 Reader (link) which is connected to my raspberry pi 3 over GPIO. My idea is to build a case for the reader and make the reader portable. This means that I need the plug&...
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0answers
16 views

Data acquisition using DSO 2150 (Hantek, Virtins, etc.) in Raspberry Pi

I have Virtins 2815H which is a DSO based on DSO 2150, I would like to real time record a signal around 1 MHz using it and process it in Raspberry Pi. I have searched a lot about the data comm from ...
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0answers
24 views

USB Dongle not working if it's connected by default to my Raspberry Pi

I have a USB Dongle That I communicate with it using UART commands. So if I connect my dongle after starting the system I can send commands and I'm able to receive info, But if I leave the dongle ...
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0answers
34 views

Raspberry pi Zero W SSH through USB, appears as ethernet device on ubuntu but can't SSH

I've followed several tutorials on how to setup SSH through USB for my raspberry pi zero w. I've followed https://www.thepolyglotdeveloper.com/2016/06/connect-raspberry-pi-zero-usb-cable-ssh/ and ...
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1answer
131 views

USB Boot From SSD not booting — Rapsberry Pi 3b+

So I'm having issues getting the USB boot mode working on my new raspberry pi 3b+ and a couple of different SSD's I'll first go through all the things that I've done, and what I'm seeing. Installed ...
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1answer
31 views

Boot from USB with second USB disk present

I am booting a RPI3 B Plus via USB from an mSATA drive (using the Desktop Pi enclosure). This works fine. My kernel command-line uses the partition UUID to identify the root partition: root=PARTUUID=...
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0answers
16 views

I need help trying to set up a media centre on my pi, I think I have an issue with my usb adapter

I have been trying to set up my Pi 2 as a portable media centre so it can stream to VLC on my iPhone on the go. I have been following this tutorial: https://www.raspberrypi.org/forums/viewtopic.php?t=...
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0answers
37 views

SSH over USB not working in Pi Zero W

I am trying to login to Pi Zero W over SSH through Putty. I have done the required settings in the cmdline.txt, config.txt files. Also, added a blank file by name "ssh" on the microSD card. Then, the ...
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0answers
125 views

Connect to internet using Huawei E3531

I have Raspberry Pi 3 Model B V1.2 with Raspbian Stretch installed. I want to connect to internet with my Huawei E3531 dongle. I already followed this tutorial (How to use a Huawei E3531 in Modem ...
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2answers
73 views

Transfer files from Raspberry Pi Zero W to PC over USB

I would like to transfer files from Raspberry Pi Zero W to PC over USB interface. Is it possible? My idea is to first use Pi Zero standalone to run an application, which generates some files on the ...
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0answers
28 views

Rasperry Pi and Arduino echo over USB

I am trying to create an "echo server" with Arduino UNO, so that user could send some message to it through Raspberry Pi and receive the same response. On Pi I am using Python and PySerial library to ...
0
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1answer
33 views

UDEV issue.. USB triggers script but USB doesn't mount

So I have the UDEV rule: ACTION=="add", SUBSYSTEMS=="block", KERNEL=="sd[a-z]1", RUN+="/usr/local/bin/script.sh" This is saved in /etc/udev/rules.d/10-usb.rules I want it to trigger the script ...
0
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1answer
46 views

Module 3G/4G USB for Raspberry Pi 3 Model B [closed]

I want 3G/4G dongle to connect it via USB to my Raspberry Pi because I want Internet when there is no WiFi to send same scanned data. Any suggestions (Works in France) ?
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1answer
111 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 ...
0
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1answer
28 views

Is serial output via USB an option to make a rs232 connection to a pi?

There is a lot to find online to make a serial port with the gio 14 and 15 pins on the pi, isnt a usb to serial converter on a usb port of the pi a good option ? I ask this because i want to use the ...
0
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1answer
21 views

Cannot change network with USB WiFi interface

I have 2 RPi 3 Bs, each running Stretch and each with an EDIMax N150 USB device plugged in and no changes have been made to the default network configuration files. When the PIs are turned on, I can ...
0
votes
1answer
38 views

Turn off USB of a port and leave power on while no device attached

I want to turn off (and back on) the USB functionality of a port while leaving the power for charging purpose. I can do this easily with unbind and bind once a device is connected. However, is there ...
0
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1answer
56 views

how to get / mounted as external USB drive?

New Raspberry pi 3B, NOOBS, boots and runs fine out of the box. Now I want to mount an external drive and have everything happen there once boot is complete. I tried to follow https://learn.adafruit....
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0answers
12 views

Port forwarding from usb dongle [duplicate]

I have usb dongle connected to my raspberry pi 3 model B, I need to do port forwarding for the local ip to be easily access from the internet, and I didn’t find a way to do that.
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0answers
73 views

Transmission unable to write on usb disk

I have a raspberry pi 3 B+ running raspbian. I installed transmission torrent client, and I connected an usb disk to save files there. For some reason, I'm not able to write in to the disk. Until ...
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0answers
7 views

How do I block USB & LAN Card in raspberry pi [duplicate]

The Problem block USB & LAN Card in raspberry pi What I Have Tried I added blacklist usb_storage or storage-usb in /etc/modprobe.d/raspi-blacklist.conf to block USB in raspberry pi but did not ...
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0answers
61 views

pyusb: scanner insufficient permissions

UPDATE: I added a symbolic link to my .rules file and it is being created every time I unplug/plug the scanner. I believe my issue is more of a permissions issue with my Python code and more ...
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0answers
17 views

Is the USB power connection protected from reverse voltage?

Iam planning on makeing my own add-on board. It will have a 5V regulator, that will feed the GPIO-header 5V. I was just wondering if the USB port is reverse voltage protected? So it is still safe to ...
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2answers
45 views

Raspberry PI 3 freeze for some hours and afterwards its working

I've a strange issue with my raspberry pi 3: The raspberry is working fine, after a while the raspberry stops working for about 5 hours. Afterwards the raspberry recovers itself (without rebooting!) ...