No /dev/spi* after adafruit's-2.8"-tft-installation

[sr25512]

Hi,

I have been struggling for somedays now with the spi. I am trying to use both the NRF module and tft touch screen(adafruit 2.8" tft-touch-screen) in parallel. I am using the cobbler breakout from the screen to run the NRF. Before installing the adafruit's kernel (https://learn.adafruit.com/adafruit-pit ... sy-install) the spi is present in /dev however, after the installation it vanishes. I have been googling like a mad man still no luck. Some help would be great.

Here are some of the things I already tried:

1. changed the status of spidev in pitft28r-overlay.dts as given here (viewtopic.php?t=102171&p=707599)
2. created another overlay and loaded it after pitft28r in /boot/config.txt as given here (https://github.com/notro/fbtft/issues/282)

Thanks in advance for the help.

[joan]

Using the Adafruit kernel may be a dead end solution. I just don't see it being updated on a regular basis.

Are there no other methods of getting a working screen?

On the SPI issue perhaps the Adafruit image pre-dates device tree? What kernel version is reported by uname -a?

[DougieLawson]

Get a standard version of NOOBS/Raspbian or plain Raspbian.

Add

Code: Select all

dtoverlay=pitft28-resistive

to /boot/config.txt and reboot. If using NOOBS use the NOOBS recovery system to edit your config.txt.

[sr25512]

Hi, the uname -a results in kernel version 3.18.14-v7+.
I also added the dtoverlay=pitft28-resistive in /boot/config.txt still no luck. Anyone any idea. Thanks