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Prevent tu_edpt_number() from returning an invalid endpoint number #3335

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Merged
merged 1 commit into from
Nov 14, 2025
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Prevent tu_edpt_number() from returning an invalid endpoint number #3335

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3 changes: 2 additions & 1 deletion src/common/tusb_types.h
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Original file line number Diff line number Diff line change
Expand Up @@ -103,6 +103,7 @@ typedef enum {
TUSB_DIR_OUT = 0,
TUSB_DIR_IN = 1,

TUSB_EPNUM_MASK = 0x0F,
TUSB_DIR_IN_MASK = 0x80
} tusb_dir_t;

Expand Down Expand Up @@ -544,7 +545,7 @@ TU_ATTR_ALWAYS_INLINE static inline tusb_dir_t tu_edpt_dir(uint8_t addr) {

// Get Endpoint number from address
TU_ATTR_ALWAYS_INLINE static inline uint8_t tu_edpt_number(uint8_t addr) {
return (uint8_t) (addr & (~TUSB_DIR_IN_MASK));
return (uint8_t) (addr & TUSB_EPNUM_MASK);
}

TU_ATTR_ALWAYS_INLINE static inline uint8_t tu_edpt_addr(uint8_t num, uint8_t dir) {
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