diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/portable/wch/dcd_ch32_usbfs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/portable/wch/dcd_ch32_usbfs.c b/src/portable/wch/dcd_ch32_usbfs.c index 61c973062..18cc17a33 100644 --- a/src/portable/wch/dcd_ch32_usbfs.c +++ b/src/portable/wch/dcd_ch32_usbfs.c @@ -363,6 +363,10 @@ void dcd_int_handler(uint8_t rhport) { // setup clears stall ep_tx_ctrl_set(0, USBFS_EP_T_RES_NAK); data.ep0_tog = true; + // A new SETUP supersedes any control transfer still in flight; drop its stale EP0 state so a + // spurious EP0 IN/OUT can't run update_in()/update_out() against the previous request. + data.xfer[0][TUSB_DIR_OUT].valid = false; + data.xfer[0][TUSB_DIR_IN].valid = false; uint8_t *ep0_out = ep_out_buf(0); const tusb_control_request_t *setup = (const tusb_control_request_t *)ep0_out; |