Questions tagged [driver]

Questions about software drivers for external peripherals as well as drivers for the system components. This is NOT for questions about "driver boards", e.g., for motors; use 'dc-motor' instead.

90 questions with no upvoted or accepted answers
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1answer
351 views

Wi-Fi transfers hang on Raspberry Pi 3

I was trying to transfer a 50 MB file to my Raspberry Pi 3 via samba and I noticed that after few seconds the transfer slows down until it stops, same thing via scp. It starts but after few seconds (5-...
3
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0answers
46 views

How to write a Kernel module using SPI properly?

I have no experience writing kernel modules. I build some examples with gpio interrupts and they worked prety well. Now I want to use SPI from my kernel module and I will explain why I need it. I am ...
3
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1answer
2k views

DS18B20 Temperature Sensor - Rpi 3/4 Driver, Wiring, Detection, and Python Programming

I am new in raspberry pi. In my research project, I would like to monitor ground temperature at 60 points. My team decided to set a monitoring system using raspberry pi. As a preliminary test, I ...
3
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2answers
892 views

Wi-Fi dongle with RTL8188RU chipset scanning but not connecting

I obtained a ALFA AWUS036NHR with a Realtek RTL8188RU chipset Wi-Fi dongle and I am trying to get it to work on a Raspberry Pi. The device is detected correctly: root@rpi1:~# lsusb | grep WLAN Bus ...
3
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0answers
3k views

What steps would I need to take to use a kindle fire screen with my RPi?

I have a first-generation Kindle Fire and a RPi. The Kindle Fire screen has a LVDS interface. The Kindle Fire runs a modified version of an Android OS. As background, I have moderate experience in ...
2
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0answers
62 views

What is the impact of setting gpu_mem=16 using the vc4 kms driver? (compute module 3+)

If i understood correctly, the kms driver (vc4-kms-v3d) uses a dynamic memory split which can be set via the 'cma' parameter in cmdline.txt This means the less memory i assign to the gpu with 'gpu_mem'...
2
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0answers
161 views

Raspberry Pi Model 4 - Which nonfree parts remain?

As the Raspberry Pi Model 4 was released today, I reckon it's time to update this question. I'm aware of the fact that a lot of effort was put into writing usable free software GPU drivers as stated ...
2
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0answers
421 views

Accessing 3+ SD/MMC /dev/mmcblk devices

I've successfully followed some instructions for access 2 SD cards via SPI on a Raspberry Pi 3: https://ralimtek.com/Raspberry_Pi_Secondary_SD_Card/ How do I configure it to access more than 2 SD ...
2
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0answers
621 views

How to Set Up Driver Support for I2S Audio Codec

I am building a I2S audio codec using an ADAU1781 chip, which will communicate with the Pi via the GPIO pins. In my research I have found that there is an ASoC driver built into the Raspberry Pi ...
2
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0answers
777 views

How to setup hama keypad 00053224 on RASPBIAN JESSIE

I bought a Hama 00053224 Keypad and I want to use it with my raspberry pi to easily enter digits. Is there a way to install or configure a driver for it on raspbian jessie? Because nothing happens if ...
2
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0answers
1k views

Raspberry Pi Zero and Waveshare 4 inch IPS screen

I've tried to install this screen, used the image on the supplied CD, and the little light just flashes 8 times, so I go back to NOOBS, reinstall, then download the driver they supply from their site, ...
2
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0answers
3k views

How to setup resistive LCD touchscreen over SPI

I've been following a guide for setting up an LCD touchscreen, without success. When the screen is plugged into the GPIO pins it just shows a white screen. After all my attempts it remains white. ...
2
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1answer
225 views

Stepper Motor Not Responding. Wiring Issue?

I am following the tutorial: But I am using a pi t-cobbler and a Pi 2. I am also using the ULN2803 driver. When plugging a button into the appropriate gpio spots on the breadboard, I am able to run a ...
2
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0answers
351 views

Why aren't the current kernel headers available via apt-get

I am trying to compile some usb drivers for the pi and therefore, I need to get the headers that correspond to my present kernel uname -r produces 4.1.7+ Based on my experiences with Debian and ...
2
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1answer
483 views

Artillery [ ILI9341 ] 3.2" LCD Touch Screen White Display and Driver Problem

I bought this Artillery 3.2 Inch LCD Touch Screen Display Monitor: https://www.aliexpress.com/item/32553185633.html?spm=a2g0s.9042311.0.0.27424c4dFky0Ok But it only shows a white screen, so I ...
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0answers
21 views

How is spidev and the spi-bcm2835 module related?

Removing either one deletes the SPI devices from /dev/ What's the difference between the two modules and how do they relate?
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0answers
31 views

Problem in initiating i2c driver module for bmp180 i2c based sensor at kernel level

For leaning purpose i am writing a i2c client kernel module for bmp180 pressure sensor. My kernel code is -> #include <linux/version.h> #include <linux/module.h> #include <linux/init....
1
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1answer
215 views

Who has Docker working (pi 4b)? What OS did you use?

First off I am running berryboot on the sd of my raspberry pi 4b so I can load/run raspbian desktop OS off a 480gb SSD. I hate not have running out of storage ever (this works fine). Issues: Docker ...
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0answers
132 views

Linux driver support for OV4689

I am working on Camera driver in Linux. We used camera module with OV4689 IC. Below is the link https://www.arducam.com/product/1-3-ov4689-sensor-standalone-camera-module-uc4689-a46/ Any one used ...
1
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0answers
167 views

Raspberry Pi Compute Module 3+ yocto usb ethernet found but not working

I've created my own very basic console distro with yocto and uploaded it to a compute module 3+. Everything works so far, but I am unable to access internet via the connected AXIS AX88179 Gigabit ...
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0answers
590 views

Is There Support for 8-bit/4-bit parallel i/o bus (8080 or 6800) for LCD drivers?

I'm looking at using a 240x128 LCD with a UC1608 chip. Are there any packages that support parallel i/o with it? The UC1608 has support industry standard 3-wire, 4-wire serial bus (S9, S8, S8uc) and ...
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0answers
345 views

Driver installation Edimax EW-7811 UTC

I am trying to install the drivers for Edimax EW-7811UTC on Raspberry Pi3 running Stretch lite. I followed the steps given in How to install EW-7811 AC600 Series and EW-7822UAC adapters on Raspberry ...
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0answers
258 views

Display drivers for RaspberryPi3B+

I am trying to get a 3.5 inch RPi Display working on my raspberry pi. I have written my sd card with raspbian and the pi works well (red LCD glows all the time , and greed LCD flickers (fades on and ...
1
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0answers
281 views

How to get maximum GPIO output speed in Kernel module?

I'm writing a Linux kernel module on RPi2 to push an array to RGB Led matrix, so I want to have maximum speed of GPIO to reduce the 'flick' when it run Bit Angle Modulation. According to this site, ...
1
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1answer
2k views

How to set up the Edimax EW-7611ULB combo Bluetooth WIFI dongle

Although, this dongle works (for awhile), there is a problem with the bluetooth driver. After streaming for about an hour, the driver eats up all the Pi memory and the Pi stops responding. Power ...
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0answers
129 views

Slideshow program to use with Raspbian and OpenGL?

I have a Pi 3 Model B+ which I wanted to use as a device to show a slideshow for images on a screen. I'm using Raspbian and was happy with FEH, but since another program ("redshift", a blue light ...
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0answers
160 views

Kernel error : [drm] Resetting GPU

I am using an app which is using the vc4-drivers. Sometimes videos freeze for an instant, and I see a kernel message saying : [drm] Resetting GPU After that, some font are no more displayed but the ...
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0answers
453 views

SONY TV as Display / Monitor

Background: I have successfully used pi-3b+ to display on LG LED TV, New model Sony 4K LED TV. Requesting your support: The year 2011 SONY 40NX710 model is showing blank (No desktop / text-console). ...
1
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0answers
86 views

Waveshare 7'' LCD conflicts with WIFI (hostapd)

I have bought a Waveshare 7'' LCD (C) (https://www.waveshare.com/7inch-HDMI-LCD-C.htm) and it seems to work correctly on Raspberry PI 3B+ following the instructions on the site (it doesn't require ...
1
vote
1answer
968 views

Change active wifi network without reboot using external USB wifi dongle

I'm trying to programmatically change which wifi network my PI is connected to, on the fly without a reboot. When I run the script using this USB wifi device it won't switch. However, it works when ...
1
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1answer
316 views

Single channel SPI DMA

The documentation on the SPI peripheral says: Two DMA channels are required, one to read from and one to write to the SPI. Is this necessarily true? I have a device where I need to write a few ...
1
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0answers
288 views

Install Archer T1U driver on Ubuntu Mate

I am trying to install a driver for this wireless dongle but it states that the drivers can be built only on kernel versions 2.6~3.16. While mine is: uname -a Linux pi-raspberry11 4.4.38-v7+ #938 SMP ...
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0answers
929 views

How do I speed up MG995 servo motor using PCA9685 motor driver?

I am using PCA9685 to drive a MG995 servo motor. I am using the following code to control the servo motor. import time,Adafruit_PCA9685 def elbow(): pwm = Adafruit_PCA9685.PCA9685() pwm....
1
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1answer
881 views

Problems with compiling drivers for rtl8192cu

I'm trying to use realtek 8188cu module in concurrent mode(both station and AP mode simultaneously). I downloaded the driver source files from here: https://github.com/raspberrypi/linux/tree/...
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0answers
536 views

Install rtl8192cu WLAN driver on android

I have a RPi2 and have installed Lineage OS 14.1 (Android 7.1.2) However my wifi adapter(0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter) which worked on Raspbian, doesn't seem ...
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0answers
139 views

In simultaneous use of SPI0 and DPI Mode 3 interfaces, can SPI0 CS0 be moved to a pin other than 8?

I am attempting to design a device using a Pi Zero which needs to connect to both an ENC18J60 SPI ethernet controller, and a VGA monitor via Mode 3 DPI and the Mincepi Pi Zero pi2vga schematic. While ...
1
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0answers
1k views

CODEC I2S: Using SGTL5000 in a custom board

I am using this board and this works: https://fe-pi.com/products/fe-pi-audio-z-v2 Now, I wanted to integrate an SGTL5000 (the above board's CODEC) in a custom board. I designed it and I already have ...
1
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0answers
189 views

How do you add new “driver.c” files to get built with kernel

I've been following this guide to it's entirety when building existing kernel modules with no issues. My problem arises when I try to add my own driver.c files to the /linux/drivers/input/touchscreen ...
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0answers
505 views

Unable to install the driver for “AVerTV Volar HD Nano - A867R” (a DVB-T dongle)

I downloaded the driver (for linux) from the AVerMedia site, unpacked it into an xyz directory, and from that directory I gave the command make. I got the following output Missing files that required ...
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0answers
148 views

RPI2 and RPI3 docker and usb support

I am working with my RPI2 device where is minibian with Docker where is Alpine linux for controll which is for work... I receantly using cython-hidapi for communicate with HID device (python3 lib). ...
1
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0answers
2k views

How to compile printer driver?

I installed CUPS on raspbian but while adding The printer the driver/ppd file for Epson L210 series is not available and neither on epson website the driver/ppd file for armh is available , I guess ...
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0answers
60 views

3.5mm jack with GL driver

I've installed the GL driver (with full KMS) on my Raspberry Pi 3, but now it doesn't output to the 3.5mm jack, except for the rainbow screen. How could I get the GL driver to output to the 3.5mm jack?...
1
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1answer
2k views

KeDei LCD version 6.0 with Raspberry Pi 3 driver problem

I got KeDei LCD with version 6.0 and inserted this to my raspberry pi 3 When I install drivers or images, after reboot i see on this display, how system load, and then screen become white. I tried ...
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0answers
541 views

driver for Ethernet Adapter: cdc_ether: no symbol version for module_layout

I want to use TP-LINK USB 3.0 to Gigabit Ethernet Adapter on my pi, but I have an error about the driver: cdc_ether: no symbol version for module_layout. dmesg: [ 210.182816] usb 1-1.4: new high-...
1
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0answers
866 views

Why did my stepper motor drivers fry my Raspberry Pi 2

Just fried a raspberry pi 2 using 4 of Big Easy Driver's from Sparkfun. Would love to know why it happened and how I can fix it. Here is a link to the stepper motor drivers I'm using. This page links ...
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0answers
365 views

problem with driver when upgrade to jessie

I upgrade my Raspbian from Wheezy to Jessie. now when I want use Gstreamer, I face the following error: libva info: VA-API version 0.36.0 libva info: va_getDriverName() returns -1 libva error: ...
1
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1answer
693 views

Analog psp thumbstick not working with analog to digital converter on Pi model 2

I am working on a portable RPI 2 retropie (another version of Raspbian) powered game console. I have bought an analog psp thumbstick, and an mcp3002 analog to digital converter, that I want to use for ...
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0answers
38 views

Developing drivers for HATs: is this a good practice?

I have designed a few HATs. Now about driving it, does this sounds like a good way doing it? The architecture described below is the driver layer designed for my custom kernel, but a stripped down ...
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0answers
2k views

Why I cannot read the temperature/humidity sensor sht20?

I use a temperature and humidity sensor sht20. According to this link: http://www.sensirion.com/en/products/humidity-temperature/humidity-temperature-sensor-sht2x/ It is compatible with sht21, which ...
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0answers
990 views

Using motionPie: I'm stuck trying to install a camera driver

I'm trying to set up a raspberry pi for these tasks: streaming video over a network listening to commands (I'm not yet sure how to do that) over network parse commands and control a slave connected ...