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Code Block
/ # ls -al /dev/fb0 
crw-------    1 root     root       29,   0 Jan  1 00:00 /dev/fb0
/ # cat /sys/class/graphics/fb0/name 
mxs-lcdif
/ #

Support for the touch screen is provided by the ft5x0x_ts driver (drivers/input/touchscreen/ft5x46_ts.c). The input is available via the /dev/input/event0 device node:

Code Block
/ # ls -al /dev/input/event0 
crw-------    1 root     root       13,  64 Jan  1 00:00 /dev/input/event0
/ # cat /sys/class/input/event0/device/name 
ft5x0x_ts
/ #

Both the Linux frame buffer and the LVGL internal rendering buffers are allocated in the on-chip SDRAM. This supports a 25 FPS, as measured with ebike and other standard LVGL demos.

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