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usb plugin: support devices, use new commands interface

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This commit is contained in:
Jan Vcelak 2012-05-11 16:13:45 +02:00
parent 16c9e9d781
commit 05f8a559d0
1 changed files with 26 additions and 26 deletions
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52
tuned/plugins/plugin_usb.py
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@ -1,44 +1,44 @@
import tuned.plugins
import tuned.log
from tuned.utils.commands import *
import glob
log = tuned.log.get()
class USBPlugin(tuned.plugins.Plugin):
"""
Plugin for tuning various options of USB subsystem.
"""
def __init__(self, devices, options):
super(self.__class__, self).__init__(devices, options)
self.register_command("enable_usb_autosupend",
self._set_enable_usb_autosupend,
self._revert_enable_usb_autosupend)
@classmethod
def _get_default_options(cls):
return {
"enable_usb_autosuspend": None,
"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 update_tuning(self):
# FIXME: can we drop this method?
pass
@command("usb", "enable_usb_autosupend")
def _set_enable_usb_autosupend(self, value):
old_value = {}
if value == "1" or value == "true":
value = "1"
elif value == "0" or value == "false":
value = "0"
else:
log.warn("Incorrect enable_usb_autosuspend value.")
return
for sys_file in glob.glob("/sys/bus/usb/devices/*/power/autosuspend"):
old_value[sys_file] = tuned.utils.commands.read_file(sys_file)
tuned.utils.commands.write_to_file(sys_file, value)
def _autosuspend_sysfile(self, device):
return "/sys/bus/usb/devices/%s/power/autosuspend" % device
return old_value
@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.")
@command_revert("usb", "enable_usb_autosupend")
def _revert_enable_usb_autosupend(self, values):
for sys_file, value in values.iteritems():
tuned.utils.commands.write_to_file(sys_file, value)
sys_file = self._autosuspend_sysfile(device)
tuned.utils.commands.write_to_file(sys_file, value)
@command_get("autosuspend"):
def _get_autosuspend(self, device)
sys_file = self._autosuspend_sysfile(device)
return tuned.utils.commands.read_file(sys_file)