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chip: correct docs to describe valid pin mappings

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Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram 2017-02-16 10:51:44 +01:00
parent 6ce713a959
commit a2f5f7bc91
1 changed files with 6 additions and 2 deletions
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8
platforms/chip/chip_adaptor.go
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@ -155,7 +155,9 @@ func (c *Adaptor) digitalPin(pin string, dir string) (sysfsPin sysfs.DigitalPin,
} }
// DigitalRead reads digital value from the specified pin. // DigitalRead reads digital value from the specified pin.
// Valids pins are XIO-P0 through XIO-P7 (pins 13-20 on header 14). // Valids pins are the XIO-P0 through XIO-P7 pins from the
// extender (pins 13-20 on header 14), as well as the SoC pins
// aka all the other pins.
func (c *Adaptor) DigitalRead(pin string) (val int, err error) { func (c *Adaptor) DigitalRead(pin string) (val int, err error) {
sysfsPin, err := c.digitalPin(pin, sysfs.IN) sysfsPin, err := c.digitalPin(pin, sysfs.IN)
if err != nil { if err != nil {
@ -165,7 +167,9 @@ func (c *Adaptor) DigitalRead(pin string) (val int, err error) {
} }
// DigitalWrite writes digital value to the specified pin. // DigitalWrite writes digital value to the specified pin.
// Valids pins are XIO-P0 through XIO-P7 (pins 13-20 on header 14). // Valids pins are the XIO-P0 through XIO-P7 pins from the
// extender (pins 13-20 on header 14), as well as the SoC pins
// aka all the other pins.
func (c *Adaptor) DigitalWrite(pin string, val byte) (err error) { func (c *Adaptor) DigitalWrite(pin string, val byte) (err error) {
sysfsPin, err := c.digitalPin(pin, sysfs.OUT) sysfsPin, err := c.digitalPin(pin, sysfs.OUT)
if err != nil { if err != nil {