libftdi Archives

Subject: Re: FT2232H second interface

From: Uwe Bonnes <bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
To: libftdi@xxxxxxxxxxxxxxxxxxxxxxx
Date: Thu, 29 Sep 2011 10:54:10 +0200
>>>>> "Michael" == Michael Wilt <mike@xxxxxxxxx> writes:

    Michael>   I have an FT2232H working under Windows XP.  I can make the
    Michael> first interface work just fine, but I can't get the second
    Michael> interface to work.  If I pass an index of 1 to
    Michael> ftdi_usb_open_desc_index it always gets "device unavailable" on
    Michael> subsequent calls.  If I just open the first device and try to
    Michael> specify INTERFACE_B or any other value to ftdispi_open I always
    Michael> get usb bulk write failed on subsequent calls.  I noticed that
    Michael> ftdispi_open ignores the interface argument so I changed the
    Michael> call to ftdi_set_interface to use this argument.  Is anyone
    Michael> having success with the second interface of the FT2232H?

Did you announce the second interface to libusb32-win?
-- 
Uwe Bonnes                bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

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