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Pulse Width Modulation (PWM) interface — The Linux …
https://www.kernel.org/doc/html/latest/driver-api/pwm.html
Currently there are two ways to implement pwm drivers. Traditionally there only has been the barebone API meaning that each driver has to implement the pwm_* () functions itself. This means that it’s impossible to have multiple PWM drivers in the system. For this reason it’s mandatory for new drivers to use the generic PWM framework.
PWM (Linux) - Toradex
https://developer.toradex.com/knowledge-base/pwm-linux
The Linux kernel supports PWM display backlight brightness using a dedicated driver, hence the PWM channel used for backlight brightness control is made available to user-space in a different manner than the other PWM channels. See Backlight PWM (Linux) for more information about PWM backlight usage.
PWM audio driver source code for Raspberry Pi - Forum ...
https://community.element14.com/products/raspberry-pi/f/forum/19337/pwm-audio-driver-source-code-for-raspberry-pi
I'm new to Linux driver coding (but very experienced in application coding in C and C++). I've spent some time searching for source code for the rasp-pi. I was wondering, where can I find the source code for the PWM audio driver? (that is used for the on-board audio, not via HDMI).
sound - Realtek Audio Drivers for Ubuntu - Ask Ubuntu
https://askubuntu.com/questions/722685/realtek-audio-drivers-for-ubuntu
The ALSA drivers don't support microphones for my soundcard (Creative Sound Blaster 5.1 VX). Also, It does not handle audio output quite well. I have issues. Also, I'd really like some software like the windows-only "Realtek Audio Manager" that …
Solved: Re: i.MX8QXP PWM audio module - NXP Community
https://community.nxp.com/t5/i-MX-Processors/i-MX8QXP-PWM-audio-module/m-p/1150975
Working Patch file for i.MX8qxp Audio PWM module. Change the Frequency and Period according to user specification. 0001-Driver-Pwm-Sound-Module-for …
TAS5086 data sheet, product information and support | …
https://www.ti.com/product/TAS5086
The Linux driver supports the TAS5086 6 Channel Digital Audio PWM Processor. The Linux driver supports communication through the I2C bus and interfaces with the Linux DAPM (Dynamic Audio Power Management for Portable Devices) class. Linux Mainline Status. Available in Linux Main line: Yes Available (...)
Pi IoT In C Using Linux Drivers - The PWM Driver
https://www.i-programmer.info/programming/hardware/14565-pi-iot-in-c-using-linux-drivers-the-pwm-driver.html
The PWM Driver All Pi models have two PWM channels implemented in hardware, but on models earlier than the Pi 4 these are also used to generate audio. What this means is that if you want to use hardware PWM on a Pi Zero or earlier you have to disable or at least not use audio at the same time.
PWM overview - stm32mpu - STMicroelectronics
https://wiki.st.com/stm32mpu/wiki/PWM_overview
The PWM core provides sysfs interface and PWM API. They can be used to implement PWM user and PWM controller drivers. PWM drivers (Kernel space) Provider drivers such as STM32 TIM Linux driver and STM32 LPTIM Linux driver that expose …
Linux/AM4378: AM437x PWM drivers not working - Processors ...
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/569359/linux-am4378-am437x-pwm-drivers-not-working
Linux/AM4378: AM437x PWM drivers not working. I am working on bringing up EPWM1, EPWM3, and EPWM5 on the AM4378 in linux kernel version 4.1.6. I started with the default driver code provided for my kernel, and added code to my DTS and am4372.dtsi file according to what was provided in the documentation, but have had no luck in getting a PWM ...
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