From d63a45509fd283f5ffccc29cd8569e6efd075c59 Mon Sep 17 00:00:00 2001 From: Jie Feng Date: Thu, 21 May 2026 14:52:38 +0800 Subject: ch32_usbhs: fix endpoint stall length index and clear-stall response Fix issue in the stall handling: - dcd_edpt_stall() for an IN endpoint cleared EP_TX_LEN(0) instead of EP_TX_LEN(ep_num), clobbering endpoint 0's transmit length register when stalling any other IN endpoint. Co-Authored-By: Claude Opus 4.7 (1M context) --- src/portable/wch/dcd_ch32_usbhs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/portable/wch/dcd_ch32_usbhs.c b/src/portable/wch/dcd_ch32_usbhs.c index a6dd5bb79..ea3b052ad 100644 --- a/src/portable/wch/dcd_ch32_usbhs.c +++ b/src/portable/wch/dcd_ch32_usbhs.c @@ -354,7 +354,7 @@ void dcd_edpt_stall(uint8_t rhport, uint8_t ep_addr) { if (dir == TUSB_DIR_OUT) { EP_RX_CTRL(ep_num) = USBHS_EP_R_RES_STALL; } else { - EP_TX_LEN(0) = 0; + EP_TX_LEN(ep_num) = 0; EP_TX_CTRL(ep_num) = USBHS_EP_T_RES_STALL; } } -- cgit v1.3.1