introduce optional usbd_edpt_claim, usbd_edpt_release which can be used to gain exclusive access to usbd_edpt_xfer

1 files changed, 6 insertions, 0 deletions

diff --git a/src/device/usbd_pvt.h b/src/device/usbd_pvt.h
index a5d223329..5fa9a72a5 100644
--- a/src/device/usbd_pvt.h
+++ b/src/device/usbd_pvt.h
@@ -70,6 +70,12 @@ void usbd_edpt_close(uint8_t rhport, uint8_t ep_addr);
 // Submit a usb transfer
 bool usbd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes);
 
+// Claim an endpoint before submitting a transfer
+bool usbd_edpt_claim(uint8_t rhport, uint8_t ep_addr);
+
+// Release an endpoint without submitting a transfer
+bool usbd_edpt_release(uint8_t rhport, uint8_t ep_addr);
+
 // Check if endpoint transferring is complete
 bool usbd_edpt_busy(uint8_t rhport, uint8_t ep_addr);