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Improved RNDIS configuration

Browse Source 
https://github.com/ev3dev/ev3-systemd/blob/ev3dev-jessie/scripts/ev3-usb.sh
d6679cebba
This commit is contained in:
Maxim Devaev 2022-01-04 21:38:19 +03:00
parent f1d018bef4
commit f1662e2262
1 changed files with 18 additions and 1 deletions
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19
kvmd/apps/otg/__init__.py
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@ -115,6 +115,17 @@ def _create_ethernet(gadget_path: str, config_path: str, driver: str, host_mac:
_write(join(func_path, "host_addr"), host_mac)
if kvm_mac:
_write(join(func_path, "dev_addr"), kvm_mac)
if driver == "rndis":
# On Windows 7 and later, the RNDIS 5.1 driver would be used by default,
# but it does not work very well. The RNDIS 6.0 driver works better.
# In order to get this driver to load automatically, we have to use
# a Microsoft-specific extension of USB.
_write(join(func_path, "os_desc/interface.rndis/compatible_id"), "RNDIS")
_write(join(func_path, "os_desc/interface.rndis/sub_compatible_id"), "5162001")
_write(join(gadget_path, "os_desc/use"), "1")
_write(join(gadget_path, "os_desc/b_vendor_code"), "0xCD")
_write(join(gadget_path, "os_desc/qw_sign"), "MSFT100")
_symlink(config_path, join(gadget_path, "os_desc/c.1"))
_symlink(func_path, join(config_path, f"{driver}.usb0"))
@ -174,7 +185,10 @@ def _cmd_start(config: Section) -> None: # pylint: disable=too-many-statements
_write(join(gadget_path, "idVendor"), f"0x{config.otg.vendor_id:04X}")
_write(join(gadget_path, "idProduct"), f"0x{config.otg.product_id:04X}")
_write(join(gadget_path, "bcdDevice"), "0x0100")
# bcdDevaev should be incremented any time there are breaking changes
# to this script so that the host OS sees it as a new device
# and re-enumerates everything rather than relying on cached values.
_write(join(gadget_path, "bcdDevice"), "0x0101")
_write(join(gadget_path, "bcdUSB"), f"0x{config.otg.usb_version:04X}")
lang_path = join(gadget_path, "strings/0x409")
@ -250,6 +264,9 @@ def _cmd_stop(config: Section) -> None:
logger.info("Disabling gadget %r ...", config.otg.gadget)
_write(join(gadget_path, "UDC"), "")
if config.otg.devices.ethernet.driver == "rndis":
_unlink(join(gadget_path, "os_desc/c.1"))
config_path = join(gadget_path, "configs/c.1")
for func in os.listdir(config_path):
if re.search(r"\.usb\d+$", func):