doc: add ADC information for each platform

[contrib/mraa.git] / docs / edison.md

diff --git a/docs/edison.md b/docs/edison.md
index 3cbe22b..6263b1f 100644 (file)
--- a/docs/edison.md
+++ b/docs/edison.md
@@ -11,3 +11,5 @@ in libmraa:
 
 - PWM avaible on default swizzler postions. (3,5,6,9)
 - SPI exposed is also used for the ADC. Try not to use your own CS.
+- ADC kernel module will return 12bit number but the ADC itself only has an
+  accuracy of 10bits. This ADC is only included on the arduino board.