Alistair Buxton
  • Member for 9 years, 7 months
  • Last seen more than a week ago
Run Raspbian in RAM
Accepted answer
15 votes

The short answer is this is possible but there is no simple setting that you change and it just works. It takes a lot of effort. You can't do this directly because ext4 is not a valid format for an ...

View answer
Console unusable after running SDL app
6 votes

This is almost certainly a bug in the graphics driver. It sounds as though SDL is initializing the graphics API, at which point the graphics driver takes over the display. Because you killed SDL it ...

View answer
How to use i2c_gpio with Raspberry Pi?
Accepted answer
5 votes

As of June 2016 Raspbian already has the necessary modifications. You only need to enable the overlay in config.txt (step 6 onwards). I finally got this working as follows: Rebuild the kernel with ...

View answer
The easiest way to make some rasberry pi communicate
Accepted answer
4 votes

You'll have difficulty getting I2C or SPI to work over 15 metres. Ethernet is your best bet. You don't need a router, just a cheap switch. A 16 port switch shouldn't cost you more than a Raspberry Pi.

View answer
What is the function and purpose of the GPIO connector on the official display?
3 votes

The I2C ports are duplicated because older models do not have an I2C port on the DSI connector: The DSI connector on Model A/B boards does not have the I2C connections required to talk to the ...

View answer
SDIO on GPIO 22-27 - what about SD-card-detect?
3 votes

I'm looking in to your question now. This is what I found so far. It is not yet a complete answer, but it is far too long for a comment, so here it is. The physical SD card slot on the Raspberry Pi ...

View answer
USB to USB mimicking Ethernet?
3 votes

This is only possible with the model A/A+ hardware, which is capable of both host and device mode on the single USB port it has. However, it doesn't currently work due to kernel bugs1,2,3,4. If ...

View answer
What firmware version will rpi-update install?
3 votes

rpi-update currently defaults to installing the firmware found in the head commit of the master branch of the http://github.com/Hexxeh/rpi-firmware repository. In order to find the build time and ...

View answer
How do I find the firmware repository commit which matches the firmware version reported by vcgencmd?
Accepted answer
2 votes

For Raspbian and derivatives The firmware is installed by the raspberrypi-bootloader package. It has the revision in the changelog: zcat /usr/share/doc/raspberrypi-bootloader/changelog.Debian.gz | ...

View answer
How do I compile GHC if it depends on itself?
2 votes

This is known as a bootstrap problem and is often encountered when cross compiling scripting languages. For example, Python has (or had) similar problems. It's one of the trickiest (and most annoying) ...

View answer