Re: [PATCH 0/2] Associate ddc adapters with connectors

[Russell King - ARM Linux admin]

On Tue, Jun 25, 2019 at 12:14:27PM +0200, Andrzej Pietrasiewicz wrote:
> Hi Russell,
> 
> W dniu 25.06.2019 o 12:03, Russell King - ARM Linux admin pisze:
> > On Tue, Jun 25, 2019 at 11:46:34AM +0200, Andrzej Pietrasiewicz wrote:
> > > It is difficult for a user to know which of the i2c adapters is for which
> > > drm connector. This series addresses this problem.
> > > 
> > > The idea is to have a symbolic link in connector's sysfs directory, e.g.:
> > > 
> > > ls -l /sys/class/drm/card0-HDMI-A-1/i2c-2
> > > lrwxrwxrwx 1 root root 0 Jun 24 10:42 /sys/class/drm/card0-HDMI-A-1/i2c-2 \
> > > 	-> ../../../../soc/13880000.i2c/i2c-2
> > 
> > Don't you want the symlink name to be "i2c" or something fixed, rather
> > than the name of the i2c adapter?  Otherwise, you seem to be encumbering
> > userspace with searching the directory to try and find the symlink.
> > 
> 
> Thank you for your comment. So you imagine something on the lines of:
> 
> lrwxrwxrwx 1 root root 0 Jun 24 10:42 /sys/class/drm/card0-HDMI-A-1/ddc \
>  	-> ../../../../soc/13880000.i2c/i2c-2
> 
> ?

Exactly.

> This makes sense to me, I will send a v2.

Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
According to speedtest.net: 11.9Mbps down 500kbps up