On Thu, Jul 13, 2023 at 09:24:03AM +0000, Hollerer Franz, Schrack Seconet AG, Entwicklung wrote: > > I have several processes (one of them is a shell scripts, others are > C/C++ programs) which need to read the same input line. > Is it somehow possible to request input lines for non-exclusive use? No, it is not possible. > If not, is this a feature which will be added sometime in the future? > No, there are no plans for such a feature, AFAIAA. The solution is to have a userspace process monitor the line and share the value with the other processes. How best to do that is up to you. A simple approach would be to write the value to a file. (which might be a useful mode to add to gpiomon??) Bart is working on a daemon that may provided shared read access, but I'm just guessing. Cheers, Kent.
Re: [libgpiod]: non-exclusive use of input lines
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- Subject: Re: [libgpiod]: non-exclusive use of input lines
- From: Kent Gibson <warthog618@xxxxxxxxx>
- Date: Thu, 13 Jul 2023 19:08:41 +0800
- In-reply-to: <1337f994e3ad45f49dc86787bcb3a019@schrack-seconet.com>
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