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

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0
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0answers
6 views

Unresponsive USB on a Raspi Model A

I've been running a headless Pi Model A (1 USB and no ethernet port) for a little while and it's just stopped working. The wifi dongle shows no life, and the pluggin keyboard has no effect. So I ...
2
votes
1answer
48 views

Write to USB stick on specific USB port

I want to write data to a USB stick plugged into a specific USB port on the PI. I know I can write to a specific USB device by using its UUID, and I know I can find the address for the USB port ...
2
votes
2answers
116 views

USB bandwidth for the RPi model B+

I've haven't been able to find any conclusive data about USB bandwidth for the RPi model B+ As I understand, the bandwidth is shared between all 4 USB-ports (and the Ethernet) because they are using ...
0
votes
1answer
98 views

Extra power to usb port on raspberry pi

I have a model B raspberry pi and an external hard drive that requires more power than the usb port on the raspberry pi can provide. Is there any way to increase the power to the usb port so that I ...
0
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0answers
19 views

Wvdial and usb_modeswitch dont work unless Device is hotplugged

I want to connect to the internet using a 3g usb dongle. I have downloaded ppp, usb modeswitch and wvdial. Modeswitch is able to switch my from storage to modem only if I hotplug the device into the ...
1
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0answers
33 views

Connecting 3g dongle requires it to be replugged

I am using a 3g dongle and usb_modeswith. It works fine if I plug the device after the Raspbian Os has booted up. The thing is, it does not connect (wvdial doesnt detect modem) , if the modem is ...
0
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0answers
29 views

Usb_modeswitch doesnt seem to work in raspberry pi b+

I just purchased a raspberry pi b+. I want to connect to the internet using a 3g dongle (huawei ec152). I followed ...
3
votes
0answers
69 views

Pi as a USB client

I am looking for a way to have the Pi act as a USB client and masquerade as a flash drive. I have seen lots of suggestions, however most of them are old (1+ years) by now and vague/incomplete - I ...
2
votes
1answer
165 views

Maximum current from usb (model b+)

I want to run the ps eye camera for my raspberry pi model b+. It is rated at 5v 500 mA . The question is , is it wise to directly connect it to the provided usb? I am using the pi to make something ...
1
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0answers
58 views

Wifi connection stops working

I am using a raspberry pi model b 512 MB with an Edimax EW-7811Un wifi stick and the raspberry pi camera. Power adapter has 2A/5V. OS is latest raspbian, kernel 3.12.25+. For the wifi stick, I have ...
0
votes
1answer
40 views

Small display with no assembling

I'd like to buy a display for my pi (B+, I will by it as fast I can). But I can't find any options that does not require assembling. Display can be "anything", like character lcd ...
5
votes
5answers
1k views

Why do people use powered usb hubs?

I have the RPi B+. It has four usb ports. At the moment I am powering an Arduino Mega, a small RFID reader and a keyboard. I plan to also power a wifi dongle and an arduino uno. Will this just work? ...
1
vote
1answer
91 views

USB modem not switching from mass storage to modem mode

I have ZTE MF669 USB modem. root@raspberrypi:/home/pi# lsusb Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 ...
1
vote
1answer
24 views

Boots only when USB key connected (fstab related)

I have the following problem on ArchLinux system. My raspberry Pi won't boot unless I have my USB stick connected. I've been doing some tests and I discovered it is fstab related. When I comment the ...
1
vote
1answer
102 views

Can the new raspberry pi B+ act as a usb sniffer?

I am trying to capture data from a computer going to a USB peripheral. I think the previous raspberry pi (model B) couldn't do this because it could not act a USB slave. But can the new raspberry pi ...
2
votes
1answer
48 views

Is it possible to toggle individual USB ports?

I have a motion-detecting PiCamera set up running, which is fine and dandy until it gets dark. I could get another Pi with the NoIR camera instead, but a simple solution occurred to me the other day - ...
2
votes
1answer
36 views

Problems trying to expand USB file system

I am having a little bit of a problem expanding my file system on my Pi. I have just used Win32 to "burn" the Raspbian OS onto my 8Gb USB, which I then copied the boot files to my 2Gb SD and changed ...
2
votes
1answer
141 views

5 Ghz Wifi on Raspberry Pi

I have already configured by Raspberry Pi to be a wireless access point using the tutorial here: ...
2
votes
1answer
89 views

Arduino Serial Port via Raspberry Pi SSH

I have just bought an Arduino Uno R3 and I would like to view the Serial Monitor using my Raspberry Pi via SSH. I have looked around on forum sites but cannot seem to find the proper software or ...
0
votes
2answers
55 views

Can I transfer programs to my RPi via a USB stick from Windows?

My raspberry pi isn't connected to the internet for now, and I don't have the patience to bridge connections and everything. Can I somehow download some linux programs from online through my windows ...
1
vote
1answer
69 views

How to set up data plan for 3g modem for raspberry pi?

I have seen several posts about how to connect a raspberry Pi to a 3g modem to begin transmitting data. Here is an example of a modem I would like to use. My main confusion is in how you get the ...
1
vote
2answers
61 views

Whenever I connect a usb device, it shuts down and won't boot for 3 minutes

when I boot my pi, everything is fine, but when I connect any usb device(they worked before), it just turns off and only will show the red light and a faint green glow for about 3 mins until it works ...
0
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0answers
26 views

Keyboard is disabled on boot up

I've just installed a copy of noobs on my Pi. I then installed Raspbian. When I boot up in recovery mode I can use my keyboard and mouse fine. However, when It boots normally I can see that it ...
0
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0answers
65 views

Raspbian keeps stalling at “[…] Starting OpenBSD Secure Shell server: sshd” during boot

I have the most up-to-date version of Raspbian (2014-06-20) freshly-installed, and went through the configuration screens without a problem. However when I shut it down, plug in a wireless USB adapter ...
1
vote
3answers
74 views

Raspberry Raid 0 gains

I'm currently using the Pi overclocked to 1GHz on Archlinux running deluge and samba which access a 3TB external USB drive. I plan on buying another identical drive and set it up as a raid 0 ...
1
vote
2answers
55 views

android device as USB Mass Storage

I've connected my nexus 4 to one of the usb ports on the model b, but it fails to mount the internal storage in /media. How do I get access to the internal storage? Connected as Media device (MTP), ...
0
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0answers
27 views

Raspi not 'accepting' JUH340 USB Hub. (Raspbian OS)

Easily, not too many people have asked a question about this model of usb hub. What I'm attempting to use is a J5 CREATE JUH340 USB 3.0 with the RPi, but it is highly unworkable. With most everything ...
0
votes
1answer
42 views

How to copy data from USB to RAM

I am trying to quickly download images from a USB digital camera to a hard drive disk attached by USB to my raspberry pi. I want to minimize the time the camera needs to be connected to the pi during ...
0
votes
0answers
64 views

Say command using mplayer no longer working

I have the say command that does text to speech on my RaspberryPi: #!/bin/bash mplayer "http://translate.google.com/translate_tts?tl=en&q=$1" The script is taken from jacobsalmela.com This ...
-1
votes
1answer
19 views

Active USB-Hub, letting the + and - open?

I have done some modifications to my Raspberry Pi (Model B). The basic idea is to have an active usb-hub connected to the Raspi, so i can control the power of the hub with a switch(it should all run ...
0
votes
1answer
40 views

USB disabled when ethernet is plugged in

I'm using a wireless keyboard, it works fine with the raspberry pi, but when I plugin my ethernet my keyboard no longer functions. I can't enter any keys or anything. Any ideas? No usb hub involved.
0
votes
2answers
79 views

Rpi as usb stick

I'm looking for a way to turn my Pi into a usb stick. The data on the PiStick should actually be a network share (nfs) This way I would have a 1TB Usb stick in the house. Is there any way to ...
0
votes
1answer
33 views

Trouble finding Wi-Fi Adapter

I've followed this guide, wich explains to first check if my USB gets recognized by my raspberry by lsusb or ifconfig. I've tried both and this is what I get: ifconfig lsusb So my Raspberry does ...
4
votes
1answer
180 views

USB card as my default Audio Device

I purchased a small USB sound card. My Pi recognizes the device: $ lsusb Bus 001 Device 004: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controller If I run alsamixer and set the audio to ...
2
votes
0answers
49 views

usb soundcard losing power

I bought this USB soundcard. I have this powered USB hub and I plugged the soundcard to the hub(the 2 usb ports in the pi are used by wifi dongle and usb hub). I changed the configs , and rebooted and ...
3
votes
2answers
117 views

Is there a way to automatically activate a script when a USB device connects?

I have a USB device (POV camera) that collects a lot of data a fills up its storage regularly. The goal is to write a script that: Listens for the device to connect via USB Mounts it as a storage ...
0
votes
1answer
41 views

Does backfeeding the pi allow me to draw more current than normal from the other free usb port?

I've designed a PCB that does some I/O and powers the raspberry pi through one of the Pi's usb ports. I want to use the other free USB port for a wifi dongle. Since I'm backfeeding power will the ...
0
votes
2answers
129 views

Power external hard drive though USB — safe to use USB charger?

I would like to connect an external hard drive to the Raspberry Pi. This hard drive must be powered through USB and comes with a cable that has two ends (to ensure sufficient power). The cable is ...
0
votes
0answers
41 views

USB camera originally designed for PC hardware and kernel 2.x

I wonder if this is off-topic. Basically, I want to get some idea before spending expensive money on international mail order. The question is really getting comment on how compatible is Linux on ...
0
votes
1answer
160 views

Ethernet video input to RCA composite output

I have a model B raspberry pi running raspbian with an 8GB sd card. I want to connect my laptop by ethernet cable to my RPi and then output the laptops screen over the RCA composite output of the RPi ...
1
vote
1answer
62 views

Forcing one of two wifi dongles

I have two wifi dongles connected to a RPi. I like to use one dongle (Edimax) as primary connection to my home router, and the other as access point (this one being an AWUS036NH). How can I force that ...
0
votes
0answers
119 views

Adding and Cascading Ethernet and USB Hub LAN9512 to Raspberry Pi

as the title suggested, I am trying to add 2 ethernet interface and several USB port to my Rasp Pi. Since this will be used in project and the client wanted me to make the device as small as possible, ...
1
vote
2answers
115 views

Raspberry pi reboots when usb wifi (Edimax EW-7811UN) is plugged without usb extension cable

This is an odd issue that there have been quite a bit of discussion about even on this forum. Possible suggested issues range from insufficient power to bad internal hardware design of the pi. When ...
0
votes
1answer
45 views

Identifying USB devices [closed]

I have several RS232 to TTL UART converters plugged into my Pi. The problem is that their device assignments change sporadically. Sometimes the first device gets /dev/ttyUSB0, and another time ...
2
votes
2answers
83 views

How can I increase USB voltage on multiple Pi's?

I'm in a situation where I have to leave something like 10-12 Pi's for more than a week, and I want to connect independent HDDs to each one of them. It seems impossible for me to obtain individual ...
0
votes
0answers
61 views

Problems reading data with usb to serial adapter

I made application in Java that receives requests over HTTP and forwards them to the serial port, and back. I am using RXTX Java library and usb to serial port adapter. From my windows machine where ...
1
vote
1answer
246 views

Raspberry Pi and the USB to TTL Serial Cable on Mac

I've logged all my progress here Raspberry Pi and the USB to TTL Serial Cable on Mac (unfinished). screen /dev/cu.PL2303-000013FA 115200 Here's the errors that I'm getting It just hangs with a ...
0
votes
0answers
50 views

RPi: Using WvDial (error 16) and/or Sakis3G with EE, for Headless

I'll try and keep it short and sweet - I am trying to create a headless RPi that will wake up and connect to the internet, be it anywhere. I found Sakis3G to be somewhat successful, and I have ...
2
votes
1answer
399 views

How to receive data via bluetooth on Raspberry Pi and transfer it to USB port

I would like to know the way by which the data received on raspberry pi via Bluetooth from some other device can be transferred to a flash drive connected to the USB port of raspberry Pi.
2
votes
1answer
90 views

Cheap COTS transceivers that work with Raspberry Pi?

I'm looking for a way to get an app running on a laptop to communicate with an app running on a Raspberry Pi. This is a home/hobby project, so looking for inexpensive COTS hardware and open source ...