Linux is a high-profile computer operating system. The Raspberry Pi can run one of a number of Linux distributions, the most pupular being Debian and Arch Linux.

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Symbol Error - invalid argument - after Cross-Compiling Custom Rasbian Kernel and Modules

Today I wrote a Bash script to automate the steps shown in the link below with the goal of cross compiling my own Kernel and enable some modules not in the standard Raspbian Distribution from my ...
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42 views

dd for image backup

My SD card corrupted itself but I have a back up image. The partition table leave 1GB unallocated space at the end so that I can restore to any 8GB memory card regardless of memory fluctuations. ...
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35 views

Simple Custom 1-Wire GPIO Communication Protocol between Master PI and Slave PI

I have 2 Raspberry Pis in my system. One can be 'docked' to the other one and some time later it can become 'undocked'. While docked, the 2 Pis will have a connection between 2 GPIO pins ( 1 pin on ...
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16 views

Connect Raspberry Pi and Phone to a linux machine [closed]

As a part of a project, I have to create a connection between my raspberry Pi, a linux server running on another network and a phone which can connect to the server. What this has to do is, if any ...
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2answers
33 views

Weird networking issues on Raspbian [closed]

Got a Raspberry Pi recently and it was fantastically easy to use while it was connected to my network via Ethernet. Now that my WiFi dongle (NETGEAR N150) has arrived it's a bit more fussy. I'm ...
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38 views

rpi 2: Unable to change irq affinity

I am trying to optimise getting GPIO interrupts into userspace. On the single core rpi 1 I couldn't get rid of quite some timing jitter, which makes sense as there's a lot of stuff going on on the ...
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1answer
161 views

Can I write and read the pins of the GPIO just by using the shell?

I do not have programming skills, but I have some knowledge using the command line of the shell. Is it possible to get access to the GPIO just from the shell ?
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2answers
57 views

Faster Way To Transfer Video FIle

I have a Raspberry Pi with Raspbian installed in it, and I would like to receive video files on My Ubuntu machine from Raspberry through a switch via Ethernet(CAT5). Note: I can connect both devices ...
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1answer
47 views

Not clean NTFS filesystem hangs command

I have made a NAS Server with my Raspberry Pi and this works great with a NTFS Formatted External Harddisk, but when the RPi is not correctly shut down, it makes a mess with the filesystem. When I ...
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1answer
126 views

Unmodified Linux Distro Install

I have several Raspberry PI units, but I always use the customized flavor of Linux (Raspbian) for installs. Does the Raspberry PI support the installation of an unmodified ISO from the various Linux ...
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1answer
29 views

what is the differnece between the gpio interrupt and hardware interrupt?

In raspberry linux, we are using interrupts and gpio interrupts. Whats the difference between them?
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13 views

a windows manager does not interface with X Window System

Like everybody i want to get as much as i can out of my Raspberry Pi. so i was thinking of ditching the bloated X Window System altogether. i've chosen Wayland instead (i really don't know if it ...
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2answers
58 views

loading programs onto SD card and installing. No Network

I've got MINIBIAN running on my B+ and want to keep experimenting with it by installing some software. I am not connected to the web or network, and I can't seem to find a how-to regarding installing ...
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2answers
257 views

How to stream raspivid to Linux and OSX using GStreamer, VLC or Netcat?

How can I stream video stream to Linux or OS X using raspivid and either VLC, GStreamer or Netcat?
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145 views

USB Issues with recent kernel build

I am trying to roll my own image for the raspberry Pi, I am using a B+ model Pi. What I want to do is build my own kernel and for now have it load busybox or something similar, but I seem to be ...
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1answer
41 views

How to recorad a video automatically with an embedded system

I have this project in mind, where I'm not yet sure if it's possible to realize this way. The situation I want to run an embedded System (e.g. a Raspberry, or any other embedded system) to record a ...
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12 views

what is the INTERRUPT_HOSTPORT?

I am understanding the interrupts in the raspberry pi B+ board and I come across this interrupt INTERRUPT_HOSTPORT And I dont know what it is for? Can u explain me once? Thanks in advance.
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2answers
178 views

Auto startup of the Midori web browser is not working on Raspberry pi

I am trying to start the Midori web browser on Raspberry Pi, on boot. These are the steps I've followed so far: I have edited the .bashrc file from the root folder using this command: sudo nano ...
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2answers
65 views

Unable to send file from Raspberry Pi to my system through SSH

I am using debian in my raspberry pi and Ubuntu12.04 in my laptop. I am trying to send some files from my raspberry pi to my laptop. For this I use SSH and use this command:- sudo scp acc.c ...
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1answer
81 views

How to share internet connection from ubuntu with RPi using Ethernet Cable [closed]

I am a new user of Raspberry Pi. I have a Ubuntu PC (with Ubuntu 14.04 running). My RPi is booted with Raspbian OS. I have added "ip=192.168.1.20" into my "cmdline.txt", at the end. Thus, in order to ...
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1answer
86 views

Raspberry Pi High-Quality Sound Recording

For a project, I need to be able to record at a sample-rate of at least 500 kHz. I want to use a Raspberry Pi, but I know that it has no interface with sound. I found the Wolfson Audio Card for the ...
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1answer
139 views

VMware across clustered Raspberry Pi

I've read many threads about gaming clusters that always end up in "your software isn't built for clustering", but I've been lead to believe that VMware IS built for clusters. That being said, if I ...
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1answer
88 views

Raspberry Pi backup server (windows & mac)

I would like to set up my raspberry pi model B and my 2TB hard drive as a backup server for both my windows pc and my mac. I would like to partition my hard drive such that 300GB is for mac time ...
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1answer
169 views

OpenWrt to Raspberry Pi

I am planning to turn my raspberry pi B+ into a router. The main motto is to create a QOS application on my Pi so that I can limit the bandwidth usage to a particular application. For example if I ...
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43 views

How to write a device tree overlay for the wolfson audio card?

I am working on the device tree for raspberry pi. I Compiled and everything working fine and now what i need is, to write the device tree overlay for the audio card ie wolfson audio card. Is there ...
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1answer
114 views

Cloning SD card causes “interface eth0 does not exist”

I have cloned my raspberry pi SD card after customising the OS. However, when I try to boot it on a different pi, everything appears fine, but eth0 doesn't show up in ifconfig. When I try 'ifup eth0', ...
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51 views

Is there any way to record audio output by using command line?

I'm trying to record the audio output of my pi but i can't find any good solution. I tried to use arecord but it fails because I don't have any input devices. Because of this my idea was to redirect ...
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211 views

i am unable to boot with my latest rpi-3.18.0 kernel and enabling the device tree?

I am working on the latest rpi kernel ie 3.18.0 and by enabling the device tree. I compiled the source code and with that image and modules i am unable to boot. I downloaded the source code from ...
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4answers
186 views

Getting started with raspberry pi B+

I just got r-pi B+ and flashed an 8gb sd card with 'pidora'. But I am stuck at the logging in process. I don't have a display for the r-pi. All I have is a laptop running Fedora 20 and a raspberry pi ...
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1answer
95 views

Can I use Google Translate to make my Raspberry Pi speak in different languages on demand?

I have found various instructions on making the 3.5mm audio jack on the Pi work with some sort of text to speech. I tried quite a few instructions that were online, but very few spefied the Pi, which ...
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2answers
241 views

Executing bash script in python language

I tried to make a python script to make "sudo cp -avr /home/pi/progs/ /var/www/" but wasnt able cuz of errors. Now I want to simply make "ls /var/www/" but I got those errors: Traceback (most ...
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1answer
118 views

i want to set the alt function for the gpio in raspberry pi

I am working on the raspberry pi, doing changes in the machine driver. And there is a hack in the machine driver to change the alt function of one gpio. So i want to remove the hack and want to call ...
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1answer
142 views

Automount USB as read only for MP3 player

I've made a MP3 player for the Pi using a 16x2 LCD display and 5 buttons; what I would like to do next is to add the ability to automount any USB flash inserted and then tell my program (all written ...
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215 views

Can I connect two Linux systems via USB?

I would like to hook up my new Raspberry Pi A+ to an older B model without having to connect the A+ to WiFi. Can I connect them somehow via USB? Can I do it with a hub in between?
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1answer
116 views

rPi B+ Arch Linux running Java application

My customer's java app (.jar) file runs on rPi B+ with arch linux installed. Now, I've also enabled hardware watchdog timer which purpose is to reboot rPi when java app hangs. Now, I've configured the ...
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2answers
107 views

Two GPIO-based TFT screens?

Is it possible to connect two GPIO screens to the Raspberry Pi at once? Ideally, one with touchscreen capabilities and one without. If it's not possible, could both a GPIO screen and a small HDMI ...
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0answers
88 views

Dynamic compression / limiter of MP3 audio playback? [closed]

I often listen to audio plays (single or multiple MP3 files) before going to sleep but then wake up again when there is a much louder scene or the end theme. I can't just turn the volume down in ...
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51 views

PIGPIO: Can child process use the parent initilized pigpio library?

I have a parent process (which is a basic tcp server). This process calls gpioInitialise() before forking a child process which polls gpio pins for input. After forking the child, the parent process ...
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68 views

Fake bcm2835 library

I'm developing something in C++ that needs to use SPI communication, The fastest way I've seen is using the bcm2835 library for RaspberryPi. I'm doing all the developing process on my pc and cross ...
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1answer
142 views

PJSIP cross compilation linker error unresolvable relocation

I'm trying to write a very small, very simple project using PJSIP. But I'm already stuck on the first step, incorporating PJSIP in my project. I'm trying to build and compile on a Ubuntu 14.04 system ...
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0answers
23 views

what is the use of this patch 'ASOC: dapm: add code to configure dai link parameters from “rpi-3.12.y” '?

Recently i am working on the raspberry pi kernel rpi-3.12.y When i am using the latest image and modules of it, i am getting an error while rebooting or halting. The error message is like unable ...
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2answers
503 views

How do I fix this 'transmission-daemon: command not found' error?

I set up a brand new Raspbmc and installed transmission-daemon on it. I was able to stop it by issuing a sudo /etc/init.d/transmission-daemon stop, after which I proceed to make some changes to ...
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0answers
107 views

Problem with debconf when trying to upgrade

I have problem with upgrade my system. When i used command: sudo apt-get upgrade I get an error: Use of uninitialized value in concatenation (.) or string at ...
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0answers
105 views

Is it possible to run Pantheon on ArchLinux with bearable performance? (B+)

I received my Raspberry Pi B+ in the mail today and Pantheon is one of my favourite desktop environments. My question is if it possible to run it with decent performance? By requirements you could but ...
2
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2answers
88 views

Is it possible to make a fully automatic installation of raspbian?

My problem is : I want actually to make the sd card bootable directly to raspbian and when booting from it for the first time I don't need to select configuration options. I searched a lot but I am ...
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1answer
59 views

Is raspberry Pi Stable enough

I want to implement a SMS server which will be receiving the SMS messages sent from my devices all around the country. May be about 5 SMS per minute. I want to know if the RBP would be stable enough ...
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1answer
57 views

Help with Shell Scripts, creating a list of options for users [closed]

I am trying to teach myself to write Shell Scripts on my Raspberry Pi, but I am struggling to make a menu where a user can choose from these different options: display a list of current users ...
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96 views

WiPi not going into monitor mode

Ok so on my raspberry pi using the WiPi I am trying to set it to monitor mode using. Sudo ifconfig wlan0 down Sudo iwconfig wlan0 mode monitor But it says SET failed on device wlan0; Device or ...
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1answer
73 views

What means T in ls command

I was wondering what it means the letter T on the following results. $ ls -l /dev/mem crw-r----T 1 root kmem 1, 1 Jan 1 1970 /dev/mem I have change the permissions and now I don't know how ...
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1answer
678 views

OpenVPN as a background process [closed]

i would like to run the OpenVPN service in the background. I have a script like this, that basically starts the Netherlands VPN of privateinternetaccess. vpn.sh sudo openvpn --config ...