Hello Pablo,
The 'official' location for libgpiod is https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/
I don't know where the patch itself is, if there is one. The difference I ran into is that the flag sargument in:
gpiod_line_request_both_edges_events_flags function now can use things like GPIOD_LINE_REQUEST_FLAG_BIAS_PULL_UP
(3 flags were added).
Ron
On 6/10/20 5:50 AM, Pablo Sebastián Greco wrote:
On 9/6/20 20:30, R C wrote:
Hello,
I figured out that in order to use the pull up/down resistors on an RPI, using libgpiod one would need
to have a kernel version 5.5.0 or greater.
Do you have a reference to the patch that implements this? if it is small enough it could be backported
I belive currently we are at 5.42, with 7.8.2003 ? Is there gong to be a 5.5.x kernel in a later version of Centos 7.x or
is that going to be a Centos 8 'thing'?
The current plan for both 7 and 8 is to use the latest LTS kernel, that's why 7.8 was upgraded from 4.19 to 5.4, and the same thing will happen with 8.2. If the all goes the same way that it was the previous years, 2020's LTS kernel should be 5.9 (normally it is the last kernel of the year), so we should start using that kernel a few months after that. In the meantime, we'll stay with 5.4
Ron
Pablo.