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Ensure device connection is open on write and read

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This commit is contained in:
Kristian 2010-03-10 21:21:12 +01:00
parent 5e7b61449f
commit 85c4797780
1 changed files with 8 additions and 2 deletions
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10
mopidy/mixers/denon.py
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@ -14,6 +14,7 @@ class DenonMixer(BaseMixer):
self._volume = None
def _get_volume(self):
self.ensure_open_device()
self._device.write('MV?\r')
vol = self._device.read(20)[2:4]
logger.debug(u'Volume: %s' % self._levels.index(vol))
@ -24,8 +25,13 @@ class DenonMixer(BaseMixer):
if volume > 99:
volume = 99
if not self._device.isOpen():
self._device.open()
self.ensure_open_device()
self._device.write('MV%s\r'% self._levels[volume])
vol = self._device.read(20)[2:4]
self._volume = self._levels.index(vol)
logger.debug(u'Volume: %s' % self._volume)
def ensure_open_device(self):
if not self._device.isOpen():
logger.debug(u'(re)connecting to Denon device')
self._device.open()