btstack/3rd-party/segger-rtt/modifications.md

# Modifications to Segger RTT v6.54 for BTstack
- SEGGER_RTT_GCC.c:
  - include <btstack_config.h> 
  - check for ENABLE_SEGGER_RTT
  - fix prototype for `_write_r`:
    - old: `int _write_r(struct _reent *r, int file, const void *ptr, int len);`
    - new: `_ssize_t _write_r(struct _reent *r, int file, const void *ptr, size_t len) 
- SEGGER_RTT.h/c
  - add SEGGER_RTT_GetAvailWriteSpace
segger-rtt: update to v6.54, document modifications for BTstack 2019-11-18 10:58:56 +00:00			`# Modifications to Segger RTT v6.54 for BTstack`
			`- SEGGER_RTT_GCC.c:`
			`- include <btstack_config.h>`
			`- check for ENABLE_SEGGER_RTT`
			- fix prototype for `_write_r`:
			- old: `int _write_r(struct _reent r, int file, const void ptr, int len);`
			- new: `_ssize_t _write_r(struct _reent r, int file, const void ptr, size_t len)
segger-rtt: add SEGGER_RTT_GetAvailWriteSpace function 2019-11-18 14:19:26 +00:00			`- SEGGER_RTT.h/c`
			`- add SEGGER_RTT_GetAvailWriteSpace`