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-rw-r--r--src/class/vendor/vendor_device.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/class/vendor/vendor_device.c b/src/class/vendor/vendor_device.c
index 8db5005f4..7f2fe9793 100644
--- a/src/class/vendor/vendor_device.c
+++ b/src/class/vendor/vendor_device.c
@@ -168,6 +168,8 @@ void vendord_reset(uint8_t rhport)
bool vendord_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_len)
{
+ TU_VERIFY(TUSB_CLASS_VENDOR_SPECIFIC == itf_desc->bInterfaceClass);
+
// Find available interface
vendord_interface_t* p_vendor = NULL;
for(uint8_t i=0; i<CFG_TUD_VENDOR; i++)