pybot/drivers/hotplug/button.py


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RD_VERSION = 0x00
GET_VALUE = 0x01
ERROR = -1

def getVersion(dev):
    dev.send([RD_VERSION])
    raw = dev.read(3)
    return raw[1] + raw[2] * 256

def getValue(dev):
    dev.send([GET_VALUE])
    raw = dev.read(2)
    if not(raw[1] == 255):
        return (1 - raw[1])
    else:
        return ERROR