Hi USB developers,
We have a program that communicates through serial ports with a legacy Windows application that we do not control. Using onboard
serial ports, everything works fine. When we try to use a USB to serial converter(type doesn't matter, UFTDI or Prolific) we run
into problems. Th
On Wednesday 03 December 2008, Michael wrote:
> Hans Petter Selasky wrote:
> > On Tuesday 02 December 2008, Michael wrote:
> >> 3. I tried using a current checkout of usb2 (and added all the device
> >> IDs necessary), but serial_3g is missing (and therefore
> >>commented out in sys/modules/usb
Hello,
I've been looking at the usb2 code, and from what I've understood, only
synchronous transfers are possible : a read (for exemple) is only scheduled
when the userland program calls usb_bulk_read().
Furthermore, only fixed size buffers are used : only one buffer of 32 kbyte
per transfer.
