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NAME	SIZE	ACTIONS
📁 __pycache__		[ DEL ]
📁 instance		[ DEL ]
📄 __init__.py	49 B	[ EDIT ] \| [ DEL ]
📄 base.py	22,417 B	[ EDIT ] \| [ DEL ]
📄 decorators.py	983 B	[ EDIT ] \| [ DEL ]
📄 exceptions.py	99 B	[ EDIT ] \| [ DEL ]
📄 hotplug.py	3,928 B	[ EDIT ] \| [ DEL ]
📄 plugin_acpi.py	2,446 B	[ EDIT ] \| [ DEL ]
📄 plugin_audio.py	3,209 B	[ EDIT ] \| [ DEL ]
📄 plugin_bootloader.py	25,914 B	[ EDIT ] \| [ DEL ]
📄 plugin_cpu.py	28,218 B	[ EDIT ] \| [ DEL ]
📄 plugin_disk.py	17,049 B	[ EDIT ] \| [ DEL ]
📄 plugin_eeepc_she.py	2,947 B	[ EDIT ] \| [ DEL ]
📄 plugin_irqbalance.py	3,554 B	[ EDIT ] \| [ DEL ]
📄 plugin_modules.py	4,925 B	[ EDIT ] \| [ DEL ]
📄 plugin_mounts.py	5,580 B	[ EDIT ] \| [ DEL ]
📄 plugin_net.py	23,252 B	[ EDIT ] \| [ DEL ]
📄 plugin_rtentsk.py	1,109 B	[ EDIT ] \| [ DEL ]
📄 plugin_scheduler.py	56,255 B	[ EDIT ] \| [ DEL ]
📄 plugin_script.py	3,852 B	[ EDIT ] \| [ DEL ]
📄 plugin_scsi_host.py	3,153 B	[ EDIT ] \| [ DEL ]
📄 plugin_selinux.py	2,320 B	[ EDIT ] \| [ DEL ]
📄 plugin_service.py	10,721 B	[ EDIT ] \| [ DEL ]
📄 plugin_sysctl.py	6,906 B	[ EDIT ] \| [ DEL ]
📄 plugin_sysfs.py	2,694 B	[ EDIT ] \| [ DEL ]
📄 plugin_systemd.py	5,428 B	[ EDIT ] \| [ DEL ]
📄 plugin_uncore.py	4,723 B	[ EDIT ] \| [ DEL ]
📄 plugin_usb.py	2,015 B	[ EDIT ] \| [ DEL ]
📄 plugin_video.py	3,807 B	[ EDIT ] \| [ DEL ]
📄 plugin_vm.py	3,561 B	[ EDIT ] \| [ DEL ]
📄 repository.py	1,530 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: plugin_usb.py

from . import base
from .decorators import *
import tuned.logs
from tuned.utils.commands import commands
import glob
import errno

log = tuned.logs.get()

class USBPlugin(base.Plugin):
	"""
	`usb`::
	
	Sets autosuspend timeout of USB devices to the value specified by the
	[option]`autosuspend` option in seconds. If the [option]`devices`
	option is specified, the [option]`autosuspend` option applies to only
	the USB devices specified, otherwise it applies to all USB devices.
	+
	The value `0` means that autosuspend is disabled.
	+
	.To turn off USB autosuspend for USB devices `1-1` and `1-2`
	====
	----
	[usb]
	devices=1-1,1-2
	autosuspend=0
	----
	====
	"""

def _init_devices(self):
		self._devices_supported = True
		self._free_devices = set()
		self._assigned_devices = set()

for device in self._hardware_inventory.get_devices("usb").match_property("DEVTYPE", "usb_device"):
			self._free_devices.add(device.sys_name)

self._cmd = commands()

def _get_device_objects(self, devices):
		return [self._hardware_inventory.get_device("usb", x) for x in devices]

@classmethod
	def _get_config_options(self):
		return {
			"autosuspend" : None,
		}

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, sim, remove):
		enable = self._option_bool(value)
		if enable is None:
			return None

val = "1" if enable else "0"
		if not sim:
			sys_file = self._autosuspend_sysfile(device)
			self._cmd.write_to_file(sys_file, val, \
				no_error = [errno.ENOENT] if remove else False)
		return val

@command_get("autosuspend")
	def _get_autosuspend(self, device, ignore_missing=False):
		sys_file = self._autosuspend_sysfile(device)
		return self._cmd.read_file(sys_file, no_error=ignore_missing).strip()