--- /dev/null
+--- a/src/drv_vmmc_fw_commands.h
++++ b/src/drv_vmmc_fw_commands.h
+@@ -4628,26 +4628,28 @@ struct RES_DTMFATG_COEF
+ struct CDM_RES_DTMFATG_DATA
+ {
+ CMD_HEAD_BE;
+- /** Frequency 1 1st Tone or Dual Tone Control Word 1 */
+- IFX_uint16_t FREQ11_DTC1;
+- /** Frequency 2 1st Tone or Dual Tone Control Word 2 */
+- IFX_uint16_t FREQ21_DTC2;
+- /** Frequency 1 2nd Tone */
+- IFX_uint16_t FREQ12_DTC3;
+- /** Frequency 2 2nd Tone */
+- IFX_uint16_t FREQ22_DTC4;
+- /** Frequency 1 3rd Tone */
+- IFX_uint16_t FREQ13_DTC5;
+- /** Frequency 2 3nd Tone */
+- IFX_uint16_t FREQ23_DTC6;
+- /** Frequency 1 4th Tone */
+- IFX_uint16_t FREQ14_DTC7;
+- /** Frequency 2 4th Tone */
+- IFX_uint16_t FREQ24_DTC8;
+- /** Frequency 1 5th Tone */
+- IFX_uint16_t FREQ15_DTC9;
+- /** Frequency 2 5th Tone */
+- IFX_uint16_t FREQ25_DTC10;
++ struct_group(FREQS,
++ /** Frequency 1 1st Tone or Dual Tone Control Word 1 */
++ IFX_uint16_t FREQ11_DTC1;
++ /** Frequency 2 1st Tone or Dual Tone Control Word 2 */
++ IFX_uint16_t FREQ21_DTC2;
++ /** Frequency 1 2nd Tone */
++ IFX_uint16_t FREQ12_DTC3;
++ /** Frequency 2 2nd Tone */
++ IFX_uint16_t FREQ22_DTC4;
++ /** Frequency 1 3rd Tone */
++ IFX_uint16_t FREQ13_DTC5;
++ /** Frequency 2 3nd Tone */
++ IFX_uint16_t FREQ23_DTC6;
++ /** Frequency 1 4th Tone */
++ IFX_uint16_t FREQ14_DTC7;
++ /** Frequency 2 4th Tone */
++ IFX_uint16_t FREQ24_DTC8;
++ /** Frequency 1 5th Tone */
++ IFX_uint16_t FREQ15_DTC9;
++ /** Frequency 2 5th Tone */
++ IFX_uint16_t FREQ25_DTC10;
++ );
+ } __PACKED__ ;
+
+
+--- a/src/drv_vmmc_sig_dtmfg.c
++++ b/src/drv_vmmc_sig_dtmfg.c
+@@ -742,10 +742,8 @@ IFX_int32_t irq_VMMC_SIG_DtmfOnRequest(V
+ /* Get a pointer to the data area which is behind the header of the cmd */
+ pAtgCmd = &pDtmfAtgData->FREQ11_DTC1;
+
+- /* Wipe the data area in the command. The size of this area is
+- command size - header size. */
+- /*lint -e(419) */
+- memset (pAtgCmd, 0x00, sizeof(CDM_RES_DTMFATG_DATA_t) - CMD_HDR_CNT);
++ /* Wipe the data area in the command. */
++ memset (&pDtmfAtgData->FREQS, 0x00, sizeof(pDtmfAtgData->FREQS));
+
+ /* Fill the data area */
+ if (pDtmf->bByteMode == IFX_TRUE)