hi，
    I have tested that once FT_readpipe return 32 occured, I run closehandle immediately, then FT_create after 5 seconds. Ft601 would turn into right state. 
after reopen ft601 device, FT_readpipe return 32 again, it's not use doing that closehandle, FT_create. ft601 device would disppeared from device manager. I have to plug in ft601 device.
I also found that a wifi router device near close to ft601 device FT_readpipie return 32 would occur frequently.
How can i do to escape from return 32? is closehandle and recreate used? is waiting 5 seconds necessary?

Hi,
  I developed a video capture card based on (ft601b)。when the USB cable is short, ft601b  work normally, but when the USB cable is long, ft601b got a problem. sometimes FT_readpipe return 32(other error).once other error occurs readpipe endpoint seem to be crash, even I have run FT_AbortPipe for User Guider suggest .what can I do to fix tihs error?