module spi-dev

[Josephus]

During start-up, I receive the message :

fatal : module spi-dev not found

Afterwords the Pi1 will stop !!!!

[joan]

Which operating system? Where did you get it? Have you made changes?

[DougieLawson]

spi-dev doesn't exist in the 3.18 kernel.
modprobe spi-bcm2708

Failing to load an optional kernel module is probably not the reason your RPi stopped.

[Josephus]

spi-dev doesn't exist in the 3.18 kernel.
modprobe spi-bcm2708

Failing to load an optional kernel module is probably not the reason your RPi stopped.

I use Rasbian on the Pi1 with the Dexter GoPiGo. It functions perfect during half a year.(Terminal, Python and scratch).
After a apt-get upgrade, the system stopped. Since that event I got this message on spi-dev.

I do not know how to proceed .......

[DirkS]

I do not know how to proceed .......

If the upgrade installed the latest kernel 3.18 (you can check this with 'uname -r') then you probably have to add

Code: Select all

dtparam=spi

to /boot/config.txt

But maybe it's best to post your problem on the Dexter forum (http://www.dexterindustries.com/forum/)

[DougieLawson]

1. Buy a new 8GB SDCard
2. Buy a USB SDCard reader (costs £1 in Poundland)
3. Build a new version of Raspbian on the new card
4. Boot from the new card
5. Insert the "broken" card in the USB reader
6. Mount the /dev/sda2 (non-NOOBS) or /dev/sda6 (NOOBS) filesystem
7. Inspect the logs and stuff in /var/log to see if you can determine the cause of the failure

[Romey-Rome]

Hello -

So how do you permanently increase the buffer size with spi-bcm2708? I don't see it having any parameters.

[joan]

Hello -

So how do you permanently increase the buffer size with spi-bcm2708? I don't see it having any parameters.

It's probably best to create a new post for a new question. It gets its own title so people know to look at the post if they are interested or can help.

That said, I didn't realise the SPI module had a configurable buffer. The user supplies a buffer of an appropriate size for the data to be read/written.