add a condition regarding OPT_MCU_RX63N
CFG_TUSB_MCU == OPT_MCU_STM32F4 || \
CFG_TUSB_MCU == OPT_MCU_STM32F7 || \
CFG_TUSB_MCU == OPT_MCU_STM32H7 || \
- (CFG_TUSB_MCU == OPT_MCU_STM32L4 && defined(STM32L4_SYNOPSYS))
+ (CFG_TUSB_MCU == OPT_MCU_STM32L4 && defined(STM32L4_SYNOPSYS)) || \
+ CFG_TUSB_MCU == OPT_MCU_RX63X
#define USE_LINEAR_BUFFER 0
#else
#define USE_LINEAR_BUFFER 1
