Please, check this issue with your displays if possible. Navigation Main page SomLabs Website. We will of course keep your suggestion for the datasheets in mind for any future revisions. However, for this case threshold is too close to sensor noise margin. Try to move your finger over the screen and see if there’s some sings of miscalibration. I have not heard of this issue before, and have posted code I have just used confirming the register read does work.

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Most of them failed due to firmware version mismatch. Most probably they are tri-stated. In this case display works.

This setting will define the same port with mux setting 0 as output to allow the driver to switch to IO mode. As you understand this code is either linux or u-boot based on the same linux i2c bus framework that has been testing for many years. I have just confirmed what I have said above, with the below code: Supported, but the driver does not load on A20 without the following patch.

Then you need to write the image file to microSD card. FocalTech chip in 4. Spontaneous cursor movement can be seen with a threshold of 3 and glass strart to work at threshold 5. Michael, 1 We use the same code to vt5306 with both displays.

Recent Drivers  TECRA A4-S211 DRIVER FOR WINDOWS 7

For older chips there are various driver sources targeting older kernel versions linux I have not heard of this issue before, and have posted code I have just used confirming the register read does work. We tried to write to mode register hoping that it will hear and exit test mode but that didn’t help. February 05, Content is available under Creative Commons Attribution unless otherwise noted. Thank you for sharing your findings, I’m sure it will help others that run into the same issue.

May 26, If you get lucky, fy5306 might find firmware supporting your device from this repository.

drivers/input/touchscreen/ftc – kernel/bcm – Git at Google

You can find more information on building and customizing Device Tree in How to customize Debian 9. We see ft3506 linux kernel log that 7″ and 4. And it works now. You need to download the image file: Is there any guide how to set up touch controller settings to force it to work?


I suspect that all this issues could force FT5x06 to hang. Probably, you can ask FocalTech what do they know about this?

libux This page has been accessed 55, times. In fact, it is present on i2c bus but it allways reads ad last byte written to it.

How to enable support for FT5x06 Multi-Touch Controller on VisionSOM-6ULL

Started by jmasamoto Board TFTs. This page was last modified on 5 Septemberat The controller IC has various registers that can be set to custom values, such as touch threshold.

We tried 3 different 4. Produced config actually scales values from touchscreen controller to map to the screen so it may happen that one axis works ok and another doesn’t.

So we still have problem with it. To enable support for FT5x06 driver, configure kernel with menuconfig tool alternatively use make xconfig or make qconfig:.