Re: [PATCH v10 0/9] Add the I3C subsystem

vitor
2018-11-15T15:25:32Z

Hi Arnd,

On 15/11/18 14:25, Arnd Bergmann wrote:
> I agree about better not exposing the bus as a /dev/i3c* node, and that we
> probably do need to expose individual devices in some form to allow
> writing complete user space drivers that can do everything a kernel driver
> can do.
>
> Can you describe what a low-level interface to the device looks like
> in the kernel? Can this be abstracted as simply pread()/pwrite() plus
> an interrupt mechanism, or do we need a set of ioctl() operations as
> well?

Like in i2c is likely to need the ioctl() too.

Best regards,

Vitor Soares