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intel_minnow_max.c: Add support for spi

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This commit also adds a bit of documentation on the low speed spi kernel module
required

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2015-03-13 16:29:33 +00:00
parent 228b7b672d
commit c621fad5f3
2 changed files with 9 additions and 2 deletions
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8
docs/minnow_max.md
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@@ -12,6 +12,12 @@ 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
@@ -22,8 +28,6 @@ will not behave as expected.
Documentation shows i2c on bus #5, ACPI shows it on bus #6, but driver uses
bus #7.
**SPI operation is not currently supported**
| MRAA Number | Physical Pin | Function | Sysfs GPIO | Notes |
|-------------|---------------|------------|------------|----------------------|
| 1 | 1 | GND | | |