Test command write

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smbusb/firmware/smbusb_firmware.c

Lines 808 to 824 in bb42dd7

	case SMB_TEST_COMMAND_WRITE:
	while (EP0CS&bmEPBUSY); // wait until ready
	*EP0BUF = 0;
	if (!i2c_start()) return FALSE;
	if (!i2c_byteout(smb_addr)) goto tcwOver;
	if (i2c_byteout(smb_cmd)) { (*EP0BUF)++; // Command ACK = command exists
	} else {goto tcwOver;}
	if (i2c_byteout(3)) { (*EP0BUF)++; // Data Byte #1 ACK = byte writable
	} else {goto tcwOver;}
	if (i2c_byteout(0)) { (*EP0BUF)++; // Data Byte #2 ACK = word writable
	} else {goto tcwOver;}
	if (!i2c_byteout(0)) {goto tcwOver;}
	if (i2c_byteout(0)) { (*EP0BUF)++; // Data Byte #4 ACK = block writable
	} else {goto tcwOver;}
	if (i2c_byteout(0)) { (*EP0BUF)++; // Data Byte #5 ACK = >block writable
	} else {goto tcwOver;}

Please, make me understand why first out byte is 0x03 ? I think, it should be 0x00 like others byte.