5982ad0f0e
AsciiDoc documentation for all the TuneD plug-ins directly in the source code. This will allow auto-generation of the TuneD plug-in documentation. Documenting new plug-ins and plug-in features needs to be compulsory now. Documentation for txqueuelen and mtu options in net plugin provided by Jan Zerdik. Signed-off-by: Jiri Mencak <jmencak@users.noreply.github.com> Signed-off-by: Jan Zerdik <jzerdik@redhat.com>
74 lines
1.9 KiB
Python
74 lines
1.9 KiB
Python
from . import base
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from .decorators import *
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import tuned.logs
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from tuned.utils.commands import commands
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import glob
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log = tuned.logs.get()
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class USBPlugin(base.Plugin):
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"""
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`usb`::
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Sets autosuspend timeout of USB devices to the value specified by the
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[option]`autosuspend` option in seconds. If the [option]`devices`
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option is specified, the [option]`autosuspend` option applies to only
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the USB devices specified, otherwise it applies to all USB devices.
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+
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The value `0` means that autosuspend is disabled.
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+
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.To turn off USB autosuspend for USB devices `1-1` and `1-2`
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====
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----
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[usb]
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devices=1-1,1-2
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autosuspend=0
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----
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====
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"""
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def _init_devices(self):
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self._devices_supported = True
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self._free_devices = set()
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self._assigned_devices = set()
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for device in self._hardware_inventory.get_devices("usb").match_property("DEVTYPE", "usb_device"):
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self._free_devices.add(device.sys_name)
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self._cmd = commands()
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def _get_device_objects(self, devices):
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return [self._hardware_inventory.get_device("usb", x) for x in devices]
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@classmethod
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def _get_config_options(self):
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return {
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"autosuspend" : None,
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}
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def _instance_init(self, instance):
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instance._has_static_tuning = True
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instance._has_dynamic_tuning = False
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def _instance_cleanup(self, instance):
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pass
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def _autosuspend_sysfile(self, device):
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return "/sys/bus/usb/devices/%s/power/autosuspend" % device
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@command_set("autosuspend", per_device=True)
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def _set_autosuspend(self, value, device, sim):
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enable = self._option_bool(value)
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if enable is None:
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return None
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val = "1" if enable else "0"
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if not sim:
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sys_file = self._autosuspend_sysfile(device)
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self._cmd.write_to_file(sys_file, val)
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return val
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@command_get("autosuspend")
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def _get_autosuspend(self, device, ignore_missing=False):
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sys_file = self._autosuspend_sysfile(device)
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return self._cmd.read_file(sys_file, no_error=ignore_missing).strip()
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