Re: [PATCH 3/3] gpio: add support for the Diolan DLN-2 USB-GPIO driver

From: Linus Walleij
Date: Fri Aug 29 2014 - 03:16:22 EST

On Wed, Aug 20, 2014 at 1:24 PM, Daniel Baluta <daniel.baluta@xxxxxxxxx> wrote:

> This patch adds GPIO and IRQ support for the Diolan DLN-2 GPIO module.
> Information about the USB protocol interface can be found in the
> Programmer's Reference Manual [1], see section 2.9 for the GPIO
> module commands and responses.
> [1]
> Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxxxx>

Major change required: rewrite this driver to not select IRQ_DOMAIN,
instead select GPIOLIB_IRQCHIP and use the shared infrastructure.
See other drivers that select GPIOLIB_IRQCHIP or grep the git
log to see how this works in practice.

You need to use some container_of() operations.

Linus Walleij
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at