[riot-notifications] [RIOT-OS/RIOT] Add stdin pseudo module and set it as dependency for applications using getchar (#11598)

Alexandre Abadie notifications at github.com
Wed Jun 12 09:48:10 CEST 2019

I don't think `stdio_read` is supposed to return EOF directly, this should be done is `syscall.c` related function. For example, in newlib, one has `_read_r`: here the errno can be set to the `_reent` variable and EOF returned if `stdio_read` return value is < 0.

But then look at other getchar implementation, e.g. atmega, msp430 they should be changed to correctly return EOF when stdio_read fails.

IMHO, this should be done in follow-up PRs and it needs a tracking issue. What do you think ?

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