MobileRead Forums - View Single Post - How to control e-ink refresh?

bulsa · 05-09-2014, 01:24 PM

So I have read through a lot of stuff... I know now yet another racy way to repaint the screen:

Code:

echo 1> /sys/devices/platform/mxc_epdc_fb/mxc_epdc_update

But still as I have no idea when the X server is writing my stuff to the framebuffer, when should I call this?

Can you point me to any code that a) uses GTK/Qt/etc. for drawing and b) does full eink refreshes without race conditions? I have not seen such code anywhere.

An interesting thing I came across was this einkdamage tool, but I gather nobody really knows what it does, is that correct?

05-09-2014, 01:24 PM	#8
bulsa Enthusiast Posts: 28 Karma: 13 Join Date: Apr 2014 Device: Kindle PW	So I have read through a lot of stuff... I know now yet another racy way to repaint the screen: Code: echo 1> /sys/devices/platform/mxc_epdc_fb/mxc_epdc_update But still as I have no idea when the X server is writing my stuff to the framebuffer, when should I call this? Can you point me to any code that a) uses GTK/Qt/etc. for drawing and b) does full eink refreshes without race conditions? I have not seen such code anywhere. An interesting thing I came across was this einkdamage tool, but I gather nobody really knows what it does, is that correct?