RPi_gpio.conf

# This programmer bitbangs GPIO lines using the Linux sysfs GPIO interface
#
# To enable it set the configuration below to match the GPIO lines connected
# to the relevant ISP header pins and uncomment the entry definition. In case
# you don't have the required permissions to edit this system wide config
# file put the entry in a separate <your name>.conf file and use it with
# -C+<your name>.conf on the command line.
#
# To check if your avrdude build has support for the linuxgpio programmer
# compiled in, use -c?type on the command line and look for linuxgpio in the
# list. If it's not available you need pass the --enable-linuxgpio=yes option
# to configure and recompile avrdude.
#
#
# #------------------------------------------------------------
# # linuxgpio
# #------------------------------------------------------------
programmer
     id                   = "linuxgpio";
     desc                 = "Use the Linux sysfs interface to bitbang GPIO lines";
     type                 = "linuxgpio";
     prog_modes           = PM_ISP;
     reset                = 8;
     sck                  = 11;
     sdo                  = 10;
     sdi                  = 9;
;