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[enum] add workaround for the lousy ASMedia USB 3.0 stack

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* This occurs on Windows 7 with the ASMedia proprietary USB 3.0
  controller drivers.
This commit is contained in:
Pete Batard 2017-01-12 11:47:28 +00:00
parent e62ab37e38
commit fd093127d2
2 changed files with 14 additions and 9 deletions
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13
src/dev.c
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@ -92,9 +92,15 @@ static BOOL GetUSBProperties(char* parent_path, char* device_id, usb_device_prop
goto out;
}
props->vid = conn_info.DeviceDescriptor.idVendor;
props->pid = conn_info.DeviceDescriptor.idProduct;
props->speed = conn_info.Speed + 1;
// Some poorly written proprietary Windows 7 USB 3.0 controller drivers (<cough>ASMedia<cough>)
// have a screwed up implementation of IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX that succeeds
// but returns zeroed data => Add a workaround so that we don't lose our VID:PID...
if ((conn_info.DeviceDescriptor.idVendor != 0) || (conn_info.DeviceDescriptor.idProduct != 0)) {
props->vid = conn_info.DeviceDescriptor.idVendor;
props->pid = conn_info.DeviceDescriptor.idProduct;
props->speed = conn_info.Speed + 1;
r = TRUE;
}
// In their great wisdom, Microsoft decided to BREAK the USB speed report between Windows 7 and Windows 8
if (nWindowsVersion >= WINDOWS_8) {
@ -111,7 +117,6 @@ static BOOL GetUSBProperties(char* parent_path, char* device_id, usb_device_prop
props->is_LowerSpeed = TRUE;
}
}
r = TRUE;
out:
safe_closehandle(handle);