On 12/07/2012 01:06 PM, Roland Stigge wrote:

On 12/07/2012 11:36 AM, Alan Cox wrote:

quoted

quoted

* Device interface for userland access (alternative to sysfs)

Currently we can set different permissions on different GPIO lines. Your
driver change drives a truck through this facility.

What I maybe misread in your concern: The dev interface is actually an
"alternative to sysfs for block GPIO", not considered as a replacement
for the current sysfs interface for _single_ GPIOs.

The fate of the latter one can be discussed separately.

Also, the sysfs interface for block GPIO can be left out of my patch
series, if necessary.

Roland