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-rw-r--r--src/device/usbd.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/device/usbd.c b/src/device/usbd.c
index 3700fb988..7f819d8f9 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -52,14 +52,14 @@ typedef struct {
uint8_t self_powered : 1; // configuration descriptor's attribute
};
- uint8_t ep_busy_map[2]; // bit mask for busy endpoint
- uint8_t ep_stall_map[2]; // bit map for stalled endpoint
+ volatile uint8_t ep_busy_map[2]; // bit mask for busy endpoint
+ volatile uint8_t ep_stall_map[2]; // bit map for stalled endpoint
uint8_t itf2drv[16]; // map interface number to driver (0xff is invalid)
uint8_t ep2drv[8][2]; // map endpoint to driver ( 0xff is invalid )
}usbd_device_t;
-static usbd_device_t _usbd_dev = { 0 };
+static usbd_device_t _usbd_dev;
// Invalid driver ID in itf2drv[] ep2drv[][] mapping
enum { DRVID_INVALID = 0xFFu };