SPI Reset on Raspberry Pi after GPIO usage

Question

I found out when I used GPIO Pins which are also SPI Pins (GPIO8,9,10,11) and clean them up. I can not reuse this Pins for an SPI connection.

I have to restart the Raspberry Pi first to use SPI again.

Do you have an idea how I can reset this Pins for SPI usage without restart?

Regards

Answer 1

use the command lsmod to get the name of your spi module and simply remove it as follows (assuming spi_bcm2708 is module name),

rmmod spi_bcm2708

then reload it as follows,

modprobe spi_bcm2708

try with sudo if doesn't work.