piio by Schelte Bron is a library for accessing a couple of the I/O possibilities of the Raspberry Pi. The library supports both gpio and i2c .
dzach 20016-9-5 Looks interesting. I have compiled the library for a Raspberry Pi 3, but have not been able to produce positive results. What is the naming convention for the pins? There seem to exist a number of them. E.g. if I want to use physical pin 11 (pin number on the connector) as an output, should I say:
piio function 11 output
piio output 11 1in order to turn on pin#11 ?
Could you please post a simple "Hello world" example (e.g. blink)? Thanks!
crshults 2016-10-01 Take a look at the note on this page: http://elinux.org/RPi_GPIO_Code_Samples "Note: For Raspberry Pi 2, change BCM2708_PERI_BASE to 0x3F000000 for the code to work."
dzach Thanks for the link!
crshults 2017-02-02 In gpio.c, change "/dev/mem" to "/dev/gpiomem" and you can use the library as a non super user. Your user just has to be in the gpio group.