0

I am looking for how I can configure a kernel devices ports, I have a MAX3421 usb host shield and I found and compiled the kernel driver for it ( http://lxr.free-electrons.com/source/drivers/usb/host/max3421-hcd.c?v=4.4 ) But am unable to figure out how to tell the module what ports to use for the spi

  • Distro: Raspbian ( Raspberry pi variant of debian )
  • Kernel version : 4.9.22+
  • module : max3421-hcd

Any help would be greatly appriciated

a link to the shield https://www.sparkfun.com/products/9947

I also have the ability to take 5v to 3.3

Improve this question
  • 1
    Could you edit your question to link to the shield and explain how you are planning to use the shield (in broad terms) as I don't understand what it is used for? Will the (presumably) 5V shield work with the 3V3 Pi GPIO? – joan Apr 19 '17 at 15:01
  • 1
    What do you mean by what ports to use? MAX3421E seems to have a single USB port and a single SPI interface. – Dmitry Grigoryev Apr 19 '17 at 15:16
  • how does it know which spi port to run over? – Tim Holum Apr 19 '17 at 15:18
  • 1
    Chatting with some people on FreeNode, they mentioned I have to create a Device Tree binding – Tim Holum Apr 19 '17 at 15:41
0

From pinout.xyz:

SPI0 pins in BCM mode are: 9, 10, 11 + 7/8

SPI0 pins in WiringPi are: 12, 13, 14 + 10/11

Improve this answer
  • 1
    This is not an answer to the question. Please read it again more carefully. – goldilocks♦ Apr 19 '17 at 20:32

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.