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-rw-r--r--src/class/cdc/cdc_device.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/class/cdc/cdc_device.h b/src/class/cdc/cdc_device.h
index 3ad7c8baf..2d5ba2575 100644
--- a/src/class/cdc/cdc_device.h
+++ b/src/class/cdc/cdc_device.h
@@ -204,6 +204,9 @@ TU_ATTR_WEAK void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts);
TU_ATTR_WEAK void tud_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* p_line_coding);
// Invoked when received send break
+// \param[in] itf interface for which send break was received.
+// \param[in] duration_ms the length of time, in milliseconds, of the break signal. If a value of FFFFh, then the
+// device will send a break until another SendBreak request is received with value 0000h.
TU_ATTR_WEAK void tud_cdc_send_break_cb(uint8_t itf, uint16_t duration_ms);
//--------------------------------------------------------------------+