[riot-notifications] [RIOT-OS/RIOT] cpu/esp32: additional _ removed from __uart_* in static symbols (#11272)

Gunar Schorcht notifications at github.com
Tue Mar 26 08:28:18 CET 2019


### Contribution description

This PR removes the additional _ for static symbols that has been added by mistake. This will make future merging with the reimplementation of ESP8266 easier.

### Testing procedure

Successful compilation of application `tests/uart` should be enough.

If it more testing is required, compile and flash the `tests/uart` application for a board that defines `UART_DEV(1)`, e.g., `esp32-wroom-32`:
```
make BOARD=esp32-wroom-32 -C tests/periph_uart flash
```
Connect GPIO9 and GPIO10 and execute the following test in terminal program
```
init 1 9600
send 1 test
```
You should be able to observe the following output:
```
> init 1 9600
Success: Initialized UART_DEV(1) at BAUD 9600
UARD_DEV(1): test uart_poweron() and uart_poweroff()  ->  [OK]
> 
> send 1 test
UART_DEV(1) TX: test
> 
> Success: UART_DEV(1) RX: [test]\n
```

### Issues/PRs references
You can view, comment on, or merge this pull request online at:

  https://github.com/RIOT-OS/RIOT/pull/11272

-- Commit Summary --

  * cpu/esp32: additional _ removed from __uart_*

-- File Changes --

    M cpu/esp32/periph/uart.c (128)

-- Patch Links --

https://github.com/RIOT-OS/RIOT/pull/11272.patch
https://github.com/RIOT-OS/RIOT/pull/11272.diff

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