edison.md: add comment on tristate behaviour on edison

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

diff --git a/docs/minnow_max.md b/docs/minnow_max.md
index 24d6f72..6d2bb51 100644 (file)
--- a/docs/minnow_max.md
+++ b/docs/minnow_max.md
@@ -1,8 +1,10 @@
-Intel Minnowboard Max
-=====================
-MinnowBoard MAX is an open hardware embedded board designed with the Intel® Atom™ E38xx series SOC (known as Bay Trail).
+Intel(R) Minnowboard Max               {#minnowmax}
+========================
+MinnowBoard MAX is an open hardware embedded board designed with the Intel(R)
+Atom(TM) E38xx series SOC (Fromerly Bay Trail).
 
-For product overview and faq see http://www.minnowboard.org/faq-minnowboard-max/
+For product overview and faq see
+http://www.minnowboard.org/faq-minnowboard-max/
 
 For technical details see http://www.elinux.org/Minnowboard:MinnowMax
 
@@ -10,16 +12,21 @@ Supported Firmware
 ------------------
 mraa has only been tested with 64 bit firmware version 0.73 or later.
 
+SPI
+---
+For SPI support you need to load the low_speed_spidev kernel module and that
+will create the /dev/spidev0.0 device node. Mraa only knows about this one SPI
+bus and no other.
+
 Interface notes
 ---------------
-The low speed I/O connector supported as per table below. 
-This assumes default BIOS settings, as they are not dynamcially detected 
-If any changes are mode (Device Manager -> System Setup -> South Cluster -> LPSS & CSS) 
-them mraa calls will not behave as expected.
-
-Documentation shows i2c on bus #5, ACPI shows it on bus #6, but driver uses bus #7.
+The low speed I/O connector supported as per table below.  This assumes default
+BIOS settings, as they are not dynamcially detected If any changes are mode
+(Device Manager -> System Setup -> South Cluster -> LPSS & CSS) them mraa calls
+will not behave as expected.
 
-**SPI operation is not currently supported**
+Documentation shows i2c on bus #5, ACPI shows it on bus #6, but driver uses
+bus #7.
 
 | MRAA Number | Physical Pin  | Function   | Sysfs GPIO | Notes                |
 |-------------|---------------|------------|------------|----------------------|