diff options
Diffstat (limited to 'src/common')
| -rw-r--r-- | src/common/tusb_types.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/common/tusb_types.h b/src/common/tusb_types.h index e000a4bd3..fd7f01b67 100644 --- a/src/common/tusb_types.h +++ b/src/common/tusb_types.h @@ -586,6 +586,12 @@ TU_ATTR_ALWAYS_INLINE static inline uint8_t tu_desc_subtype(void const* desc) { return ((uint8_t const*) desc)[DESC_OFFSET_SUBTYPE]; } +TU_ATTR_ALWAYS_INLINE static inline uint8_t tu_desc_is_valid(void const* desc, uint8_t const* desc_end) { + const uint8_t* desc8 = (uint8_t const*) desc; + return (desc8 < desc_end) && (tu_desc_next(desc) <= desc_end); +} + + // find descriptor that match byte1 (type) uint8_t const * tu_desc_find(uint8_t const* desc, uint8_t const* end, uint8_t byte1); |