Re: [spi-devel-general] [Patch 0/4] IndustrialIO subsystem (ADCs, accelerometers etc)

[Jonathan Cameron <jic23@cam.ac.uk>]

Dmitry Torokhov wrote:
> On Thu, Jul 24, 2008 at 01:45:31PM +0100, Jonathan Cameron wrote:
>>>> At the moment the big missing element of the subsystem is an easy way of
>>>> querying what is there. (proc interface similar to that for the input
>>>> subsystem)
>>> You mean /sys/class/input/, right? Indeed, something inspired by the
>>> input subsystem should work well.
>> No, I meant /proc/bus/input/devices which gives machine readable description
>> of all devices registered with the input subsystem and their capabilities.
>>
> 
> /proc/bus/input is a legacy interface (pre-sysfs). Newer subsystems
> should try to stay in /sys/.
Ah, I'd assumed it was there to provide a centralized way of discovering
what was there.  I guess it's just a matter of scanning your way through
the contents of /sys/class/input (and equivalent iio) then to find out
what is present and what is supported by each device.

Messier in a sense but guess it will work.

Ah well,

Jonathan