Hello Luis,

Thank you for writing.

I think there should be no problem to enable these options.

Would you please open a ticket on our Bugzilla and I will assign it to the right person?

Best,
-Michael

> On 14 Feb 2019, at 19:53, Luís Mendes <luis.p.mendes(a)gmail.com> wrote:
> 
> Hi all,
> 
> I noticed that the ipfire kernel configuration doesn't include the
> driver for I2C GPIO expander chip PCA9655 which is a required
> dependency for the PCIe controller. Since the PCIe card reset and
> clock request signals are provided by this expander chip, without such
> driver, Linux simply ignores the entire PCIe subsystem.
> 
> I've tested that adding the following options to the kernel
> configuration fixes the issue:
> CONFIG_GPIO_PCA953X=y
> CONFIG_GPIO_PCA953X_IRQ=y
> 
> Unfortunately IRQ option is only available is module is complied as
> kernel built-in. IRQ is relevant, because the USB subsystem relies on
> it to monitor USB port OverCurrent conditions, through the same GPIO
> expander chip.
> 
> Can these kernel configurations option be added to ipfire? It would be
> relevant to allow for additional Ethernet ports.
> 
> Regards,
> Luís Mendes
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