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SubjectRe: [PATCH v4 0/7] Implement get_multiple for ACCES and PC/104 drivers
On Thu, Mar 22, 2018 at 1:59 PM, William Breathitt Gray
<> wrote:

> Changes in v4:

I applied the v4 patch set so we get some rotation in linux-next before
the merge window.

If reviewers still find smallish issues they can certainly be fixed in follow-up

> This patchset implements get_multiple callbacks for the PC104 GPIO
> drivers as well as the PCI-IDIO-16 and PCIe-IDIO-24 GPIO drivers. These
> devices all acquire the multiple input lines with a single read, so
> utilizing the get_multiple callback can provide improvement for those
> users who regularly access multiple input lines.

Did you use the userspace chardev for some interesting experiments
with your set-ups?

I tend to think of your applications as pretty interesting for industry
peers, and a good proof-of-concept for the userspace API.

> While developing this patchset I noticed many of these devices make use
> of Intel 8255 compatible interfaces for their I/O. I may write a generic
> 8255 GPIO driver in the future to reduce some of the redundant code I
> see pop among the drivers for these devices.

This guy?

Yeah that makes all kind of sense. We are living with the legacy
of the first PCs every day when it comes own to EISA & friends...

Linus Walleij

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