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unified udc code and automatic driver detection

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This commit is contained in:
Maxim Devaev
2021-08-28 19:01:13 +03:00
parent 08dad87fea
commit 2db0656df3
7 changed files with 85 additions and 105 deletions
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13
kvmd/plugins/ugpio/otgbind.py
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@@ -32,6 +32,7 @@ from ...inotify import Inotify
from ... import env
from ... import aiotools
from ... import usb
from . import BaseUserGpioDriver
@@ -49,6 +50,7 @@ class Plugin(BaseUserGpioDriver):
super().__init__(instance_name, notifier)
self.__udc = udc
self.__driver = ""
def register_input(self, pin: int, debounce: float) -> None:
_ = pin
@@ -59,13 +61,7 @@ class Plugin(BaseUserGpioDriver):
_ = initial
def prepare(self) -> None:
candidates = sorted(os.listdir(f"{env.SYSFS_PREFIX}/sys/class/udc"))
if not self.__udc:
if len(candidates) == 0:
raise RuntimeError("Can't find any UDC")
self.__udc = candidates[0]
elif self.__udc not in candidates:
raise RuntimeError(f"Can't find selected UDC: {self.__udc}")
(self.__udc, self.__driver) = usb.find_udc(self.__udc)
get_logger().info("Using UDC %s", self.__udc)
async def run(self) -> None:
@@ -110,7 +106,8 @@ class Plugin(BaseUserGpioDriver):
ctl_file.write(f"{self.__udc}\n")
def __get_driver_path(self, name: str="") -> str:
path = f"{env.SYSFS_PREFIX}/sys/bus/platform/drivers/dwc2"
assert self.__driver
path = f"{env.SYSFS_PREFIX}/sys/bus/platform/drivers/{self.__driver}"
return (os.path.join(path, name) if name else path)
def __str__(self) -> str: