Re: [PATCH v3] USB: serial: ftdi_sio: Add support for CBUS GPIO

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Hi Johan,

On 4 August 2018 at 12:17, Loic Poulain <loic.poulain@xxxxxxxxxx> wrote:
> Some FTDI devices like FTX or FT232R support CBUS Bit Bang mode on CBUS
> pins, allowing host to control them via simple USB control transfers.
> To make use of a CBUS pin in Bit Bang mode, the pin must be configured
> to I/O mode in the FTDI EEPROM. This mode perfectly coexists with regular
> USB to Serial function.
>
> In this implementation, a GPIO controller is registered on FTDI probe
> if at least one CBUS pin is configured for I/O mode. For now, only
> FTX devices are supported.
>
> This patch is based on previous Stefan Agner implementation tentative
> on LKML [1].
>
> [1] Message-Id: 1434838377-8042-1-git-send-email-stefan@xxxxxxxx
>
> Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>

Any comments on this v3?

Regards,
Loic



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