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add tuh_cdc_get_local_line_coding()

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This commit is contained in:
hathach
2022-12-22 19:41:39 +07:00
parent 14d45b580e
commit f33883c308
3 changed files with 45 additions and 4 deletions
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12
src/class/cdc/cdc_host.h
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@@ -102,6 +102,12 @@ TU_ATTR_ALWAYS_INLINE static inline bool tuh_cdc_connected(uint8_t idx)
return tuh_cdc_get_dtr(idx);
}
// Get local (saved/cached) version of line coding.
// This function should return correct values if tuh_cdc_set_line_coding() / tuh_cdc_get_line_coding()
// are invoked previously or CFG_TUH_CDC_LINE_CODING_ON_ENUM is defined.
// NOTE: This function does not make any USB transfer request to device.
bool tuh_cdc_get_local_line_coding(uint8_t idx, cdc_line_coding_t* line_coding);
//--------------------------------------------------------------------+
// Write API
//--------------------------------------------------------------------+
@@ -133,6 +139,7 @@ bool tuh_cdc_read_clear (uint8_t idx);
//--------------------------------------------------------------------+
// Control Endpoint (Request) API
// Each Function will make a USB transfer request to/from device
//--------------------------------------------------------------------+
// Request to Set Control Line State: DTR (bit 0), RTS (bit 1)
@@ -141,6 +148,11 @@ bool tuh_cdc_set_control_line_state(uint8_t idx, uint16_t line_state, tuh_xfer_c
// Request to Set Line Coding
bool tuh_cdc_set_line_coding(uint8_t idx, cdc_line_coding_t const* line_coding, tuh_xfer_cb_t complete_cb, uintptr_t user_data);
// Request to Get Line Coding
// Should only use if tuh_cdc_set_line_coding() / tuh_cdc_get_line_coding() never got invoked and
// CFG_TUH_CDC_LINE_CODING_ON_ENUM is not defined
// bool tuh_cdc_get_line_coding(uint8_t idx, cdc_line_coding_t* coding);
// Connect by set both DTR, RTS
static inline bool tuh_cdc_connect(uint8_t idx, tuh_xfer_cb_t complete_cb, uintptr_t user_data)
{