On Fri, Feb 28, 2003 at 03:44:11PM +0000, Ian Abbott wrote:
> I noticed a problem using version 1.3.1 of the ftdi_sio driver
> <http://prdownloads.sourceforge.net/ftdi-usb-sio/ftdi_sio-1.3.1.tar.gz?download>

<aside to the people on the ftdi-usb-sio-devel list>

Any reason why you haven't been sending updates to this driver for
submission to the main kernel tree?  I'm working on changing some things
in the driver right now in the 2.5 tree, but I guess I'll just stop
if there's a lot of external changes that will be tough to merge with in
the future.

> when the FTDI USB to serial converter (I have tried FT8U232AM and
> FT232BM) is connected to a UHCI hub using the "alternate" UHCI
> driver (uhci.o).

Does the same thing happen on 2.5?

> Serial port activity stops when the ftdi_sio driver runs out of URBs
> (it has a pool of 32 urbs for writing to the serial port). For some
> reason, the driver no longer gets write bulk callbacks. The program
> is stuck waiting for the write to complete.

For 2.5, I think that urb pool can just be gotten rid of entirely.  See
the visor.c driver for a way to do this.

thanks,

greg k-h


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