diff options
Diffstat (limited to 'chip/stm32/usb_hw.h')
| -rw-r--r-- | chip/stm32/usb_hw.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/chip/stm32/usb_hw.h b/chip/stm32/usb_hw.h index be2a88661e..0c75322a7d 100644 --- a/chip/stm32/usb_hw.h +++ b/chip/stm32/usb_hw.h @@ -34,6 +34,9 @@ extern usb_uint __usb_ram_start[]; /* Attribute to define a buffer variable in USB RAM */ #define __usb_ram __attribute__((section(".usb_ram.99_data"))) +/* Mask for the rx_count to identify the number of bytes in the buffer. */ +#define RX_COUNT_MASK (0x3ff) + struct stm32_endpoint { volatile usb_uint tx_addr; volatile usb_uint tx_count; |