add ability to read from USB serial

2022-05-08 20:19:20 -04:00
parent 838102a7e9
commit 661e2b6a73
3 changed files with 30 additions and 4 deletions
--- a/watch-library/shared/watch/watch.h
+++ b/watch-library/shared/watch/watch.h
@@ -76,4 +76,12 @@
  */
 bool watch_is_buzzer_or_led_enabled(void);

+/** @brief Reads up to len bytes from the USB serial.
+  * @param file ignored, you can pass in 0
+  * @param ptr pointer to a buffer of at least len bytes
+  * @param len the number of bytes you wish to read, max 256.
+  * @return The number of bytes read, or zero if no bytes were read.
+  */
+int read(int file, char *ptr, int len);
+
 #endif /* WATCH_H_ */