>>>>> "Paul" == Paul Fox <pgf@xxxxxxxxxxxxxxxxxxxx> writes:
Paul> i've been out of the loop for a while, and i'm hoping this problem
Paul> has been solved.
Paul> i use a flash programmer that's based on the MPSSE engine of an
Paul> ft4232h -- it uses the ft2232_spi.c driver in flashrom. i also
Paul> use USB-to-serial converters (often two at a time) that are
Paul> ftdi-based.
Paul> if i'm using the serial converters, i can't then use the
Paul> programmer -- i get an error due to conflict with the kernel
Paul> ftdi_sio module. in practice, i plug the programmer into one
Paul> laptop, and the serial modules into another, and ssh between them,
Paul> but that's a fairly heavyweight workaround.
Paul> is there a way, using API calls from either libftdi or libusb,
Paul> that i can tell the kernel driver to not take ownership of my
Paul> ftdi-based programmer?
Multiple devices without different name are doomed for failure. libftdi
allows to open a device with product and/or serial string. Look at the recent
"ftdi_usb_open_dev & ftdi_set_baudrate" thread. ft2232_spi.c and flashrom
need to provide a way to specify these names. Look at examples/eeprom.c or
how (sourceforge/svn) xc3prog handles this.
If your flash programmer doesn't provide a product/serial string, program
them with MPROG, by adapting examples/eeprom.c or with ftdi_eeprom. If the
flash-programmer doesn't provide the EEPROM, use the default string,
something like "Dual RS232" depending on chip type. If the other device also
has no EEPROM, you are wrecked...
Hope this helps
--
Uwe Bonnes bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
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libftdi - see http://www.intra2net.com/en/developer/libftdi for details.
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