-------- In message <a3538c10-2438-a287-77db-ad390078b274_at_FreeBSD.org>, Andriy Gapon writes: >iicbb driver has a hardcoded timeout that defines how long the driver waits for > SCL line to go high after the driver releases it to float. Sometimes slaves >hold the line low until they are ready to continue with the communication. >As a side note, the timeout means that the driver just goes on as if the line >became high. Maybe it should produce an error instead. > >Anyway, I would like to increase the current timeout of 100 x 10us to 1000 x >10us. The rationale is that there are many slave devices, like sensors, that >take about 10 ms to return a result. So, I think that it makes sense to play >nice with such devices by default. > >Probably I'll add a sysctl for that parameter while I'll be there. sysctl or ioctl ? -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk_at_FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.Received on Mon Jul 01 2019 - 14:16:42 UTC
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