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Support for 'write_then_readfrom' #7

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Merged
merged 3 commits into from
Apr 3, 2019
Merged

Support for 'write_then_readfrom' #7

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ce80342
Support for 'write_then_readfrom'
StevenBruinen Apr 3, 2019
77df4e9
Added comment.
StevenBruinen Apr 3, 2019
2ea6865
Update adafruit_tca9548a.py
StevenBruinen Apr 3, 2019
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6 changes: 6 additions & 0 deletions adafruit_tca9548a.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,12 @@ def writeto(self, address, buffer, **kwargs):
raise ValueError("Device address must be different than TCA9548A address.")
return self.tca.i2c.writeto(address, buffer, **kwargs)

def writeto_then_readfrom(self, address, buffer_out, buffer_in, **kwargs):
"""Pass thru for writeto_then_readfrom."""
"""In linux, at least, this is a special kernel function call"""
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Travis isn't liking the two string literals back to back. Could make it one docstring, but I'd say just change this to:

# In linux, at least, this is a special kernel function call

if address == self.tca.address:
raise ValueError("Device address must be different than TCA9548A address.")
return self.tca.i2c.writeto_then_readfrom(address, buffer_out, buffer_in, **kwargs)

class TCA9548A():
"""Class which provides interface to TCA9548A I2C multiplexer."""
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