using sysfs prefix

This commit is contained in:
Devaev Maxim 2020-10-03 06:43:17 +03:00
parent 9db6a4a6b4
commit 8b2a2eb731
2 changed files with 8 additions and 4 deletions

View File

@ -37,6 +37,8 @@ from ...yamlconf import Section
from ...validators import ValidatorError
from ... import env
from .. import init
from .hid import Hid
@ -83,7 +85,7 @@ def _write_bytes(path: str, data: bytes) -> None:
def _find_udc(udc: str) -> str:
udcs = sorted(os.listdir("/sys/class/udc"))
udcs = sorted(os.listdir(f"{env.SYSFS_PREFIX}/sys/class/udc"))
if not udc:
if len(udcs) == 0:
raise RuntimeError("Can't find any UDC")
@ -170,7 +172,7 @@ def _cmd_start(config: Section) -> None:
udc = _find_udc(config.otg.udc)
logger.info("Creating gadget %r ...", config.otg.gadget)
gadget_path = join("/sys/kernel/config/usb_gadget", config.otg.gadget)
gadget_path = join(f"{env.SYSFS_PREFIX}/sys/kernel/config/usb_gadget", config.otg.gadget)
_mkdir(gadget_path)
_write(join(gadget_path, "idVendor"), f"0x{config.otg.vendor_id:X}")
@ -228,7 +230,7 @@ def _cmd_stop(config: Section) -> None:
_check_config(config)
gadget_path = join("/sys/kernel/config/usb_gadget", config.otg.gadget)
gadget_path = join(f"{env.SYSFS_PREFIX}/sys/kernel/config/usb_gadget", config.otg.gadget)
logger.info("Disabling gadget %r ...", config.otg.gadget)
_write(join(gadget_path, "UDC"), "")

View File

@ -34,13 +34,15 @@ from ...validators.basic import valid_bool
from ...validators.basic import valid_int_f0
from ...validators.os import valid_abs_file
from ... import env
from .. import init
# =====
def _make_param_path(gadget: str, instance: int, param: str) -> str:
return os.path.join(
"/sys/kernel/config/usb_gadget",
f"{env.SYSFS_PREFIX}/sys/kernel/config/usb_gadget",
gadget,
f"functions/mass_storage.usb{instance}/lun.0",
param,