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usb plugin: use new interface for plugins

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This commit is contained in:
Jan Vcelak 2013-01-24 13:39:52 +01:00
parent b49976b173
commit 5c9cdd4ba9
1 changed files with 19 additions and 13 deletions
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32
tuned/plugins/plugin_usb.py
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@ -11,32 +11,38 @@ class USBPlugin(base.Plugin):
Plugin for tuning various options of USB subsystem.
"""
def _post_init(self):
self._dynamic_tuning = False
def _init_devices(self):
self._devices = set()
self._assigned_devices = set()
@classmethod
def _get_default_options(cls):
for device in self._hardware_inventory.get_devices("usb").match_property("DEVTYPE", "usb_device"):
self._devices.add(device.sys_name)
self._free_devices = self._devices.copy()
def _get_config_options(self):
return {
"autosuspend" : None,
}
@classmethod
def tunable_devices(cls):
control_files = glob.glob("/sys/bus/usb/devices/*/power/control")
available = set(map(lambda name: name.split("/")[5], control_files))
return available
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
def _instance_cleanup(self, instance):
pass
def _autosuspend_sysfile(self, device):
return "/sys/bus/usb/devices/%s/power/autosuspend" % device
@command_set("autosuspend", per_device=True)
def _set_autosuspend(self, value, device):
value = self._config_bool(value)
if value is None:
log.warn("Invalid value for USB autosuspend.")
enable = self._option_bool(value)
if enable is None:
return
sys_file = self._autosuspend_sysfile(device)
tuned.utils.commands.write_to_file(sys_file, value)
tuned.utils.commands.write_to_file(sys_file, "1" if enable else "0")
@command_get("autosuspend")
def _get_autosuspend(self, device):