Re: [Ftdi-usb-sio-devel] Problem passing custom VID/PID to ftdi-sio

[Bill R. <bil...@gm...>]

Thanks for sharing that information!

On Thu, May 21, 2015 at 7:49 PM, Roger O. Jones <ro...@pp...>
wrote:

> On 20/05/2015 16:22, Roger O. Jones MIET wrote:
> > We've used a custom `udev` rule on the Pi to pass the correct VID
> > and  PID to the driver (as per the instructions in the "FTDI
> > Technical Note  101" and the ftdi-sio webpage) and this worked
> > previously on the Raspberry Pi Model B (raspbian with kernel
> > 3.10.25+) but today I've  tried it on a Raspberry Pi A+ (raspbian with
> > kernel 3.18.11+) but get  errors in `dmesg` from the `udev` rule and the
> > device is not recognized.
> > --8<----
> > # dmesg | grep ftdi
> > ftdi_sio: unknown parameter 'product' ignored
> > ftdi_sio: unknown parameter 'vendor' ignored
> > usbcore: registered new interface driver ftdi_sio
> > ---->8--
>
> OK, found that this is down to a change in the kernel 3.12 and later
> that impacts on the way that custom VID and PID are sent to the driver.
> We now need to load the driver and then add the new numbers to the
> `/sys/bus/usb-serial/drivers/ftdi_sio/new_id` virtual file.
>
> I've amended my `udev` rule and it seesm to work.
>
> Here the link I found explaining the change, for anyone else that's
> searching the list for the same problem:
>
> http://techtuxwords.blogspot.co.uk/2014/12/using-ftdisio-with-linux-kernel-312-and.html
>
> Hwyl,
> Roger
>
>
>
>
> ------------------------------------------------------------------------------
> One dashboard for servers and applications across Physical-Virtual-Cloud
> Widest out-of-the-box monitoring support with 50+ applications
> Performance metrics, stats and reports that give you Actionable Insights
> Deep dive visibility with transaction tracing using APM Insight.
> http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
> _______________________________________________
> Ftdi-usb-sio-devel mailing list
> Ftd...@li...
> https://lists.sourceforge.net/lists/listinfo/ftdi-usb-sio-devel
>