This patch makes the requirement on buffer size more prominent.
Additionally, it adds the missing argument to the doxygen block of the
static initializer. Finally, it chanes the argument name passed to the
static intializer to decouble the API from the implmentation details.
The mutex used to sync the reader and writer of the pipe is initialized
as unlocked. This results in a bit of wasted CPU cycles the first time a
read blocks. This patch inits the mutex in a locked state so that the
first blocking read blocks immediately.
The API of `tsrb` was changed because of confusing type situations.
This API change takes this API change of changing `char` to `uint8_t`
up a level. Since `isrpipe` most often is used together with
`periph_uart` this change even is beneficial, as `periph_uart` also
uses `uint8_t` instead of `char`.
This defines a new 'isrpipe_read_timeout' module that should be used when using
the timeout based function of isrpipe.
This fix the implicit dependency to 'xtimer' that is only needed for the
'_timeout' functions.
It prevents 'stdio_uart' that uses 'isrpipe' to need to depend on xtimer.
This was silently solved at link time for most platforms but not for the
'esp32' for example.
'drivers/at' needed to be updated at the same time to follow the api change.
