Fix for RPiFT5406 Touchscreen driver

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Ultibo
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Fix for RPiFT5406 Touchscreen driver

Postby Ultibo » Thu Jun 15, 2017 1:59 am

It was reported recently that the RPiFT5406 touchscreen driver for the Official Raspberry Pi 7" Touchscreen was not working with the test program posted in the forum.

Testing showed that the touchscreen driver worked correctly on a Raspberry Pi B+ but not on a Raspberry Pi 2B or 3B, further investigation revealed a missing cache clean operation in the driver which was preventing the correct detection of touch events from the GPU firmware.

A fix has now been committed to resolve the problem, if you have experienced issues with using the RPiFT5406 touchscreen driver please try again with this update.

For details of how to apply the latest source to your Ultibo core installation and rebuild your run time library see the wiki page Building from Source or watch the Building the RTL video on YouTube.
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pjde
Posts: 252
Joined: Tue Feb 09, 2016 6:21 am
Location: Sydney, Australia

Re: Fix for RPiFT5406 Touchscreen driver

Postby pjde » Thu Jun 15, 2017 2:47 am

Hi Garry.

Just quickly tried it.

Touch screen seems to work as expected using a PI3B.

Thanks again

Paul

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