USB Timeout

The USB timeout is the maximum time in milliseconds that a USB request can remain outstanding. It is unlikely that this will ever need to be changed from the 5000ms default value.

This USB timeout (in milliseconds) is configurable through the FTDIBUS INF file in the INF fragments shown below:

   [FtdiBus.NT.HW]
   AddReg=FtdiBus.NT.HW.AddReg

   [FtdiBus.NTamd64.HW]
   AddReg=FtdiBus.NT.HW.AddReg

   [FtdiBus.NT.HW.AddReg]
   HKR,,"USBTimeout",0x00010001,5000


which corresponds to the registry entry

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB\{Device VID, PID and interface}\{Serial number}\DeviceParameters\USBTimeout

The default value for the USB Timeout is 5 seconds (5000ms).