On Wed, Jan 27, 2016 at 11:05 AM, Bamvor Zhang Jian
[off-list ref] wrote:

From the api(ioctl GPIO_GET_CHIPINFO_IOCTL: gpiochip_info), it seems
that I could list all the gpiochips or list only one gpiochip. But
I could not list gpiochip belongs to one gpio driver.

I think you can get that information from parsing sysfs?

Yours,
Linus Walleij