I wrote:
quoted text
>   - There are other types of ABIs for I/O (character device files, block
> device files), message-based(?) I/O (netlink), configuration (configfs),
> and more.

PS:  Device files are not only suitable for bulk I/O via read and write,
they are also capable of event notification by means of poll and select
and of other kinds of I/O like configuration related I/O by means of ioctl.
-- 
Stefan Richter
-=====-==--- --=- =-=--
http://arcgraph.de/sr/
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