diff options
Diffstat (limited to 'kvmd')
| -rw-r--r-- | kvmd/apps/otg/__init__.py | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/kvmd/apps/otg/__init__.py b/kvmd/apps/otg/__init__.py index f59f7113..f47f4ea8 100644 --- a/kvmd/apps/otg/__init__.py +++ b/kvmd/apps/otg/__init__.py @@ -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): |