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-rw-r--r--tmk_core/common/chibios/printf.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/tmk_core/common/chibios/printf.c b/tmk_core/common/chibios/printf.c
index dbd059448c..dcf33f35f8 100644
--- a/tmk_core/common/chibios/printf.c
+++ b/tmk_core/common/chibios/printf.c
@@ -186,6 +186,15 @@ void tfp_format(void* putp, putcf putf, char* fmt, va_list va) {
case 's':
putchw(putp, putf, w, 0, va_arg(va, char*));
break;
+ case 'b':
+#ifdef PRINTF_LONG_SUPPORT
+ if (lng)
+ uli2a(va_arg(va, unsigned long int), 2, 0, bf);
+ else
+#endif
+ ui2a(va_arg(va, unsigned int), 2, 0, bf);
+ putchw(putp, putf, w, lz, bf);
+ break;
case '%':
putf(putp, ch);
default: