From 7b1fc2ea8a5fbf9487d83865456cff77d0249ea9 Mon Sep 17 00:00:00 2001 From: Andiry Xu Date: Thu, 5 May 2011 18:14:00 +0800 Subject: [PATCH] xHCI 1.0: Isoch endpoint CErr field set xHCI 1.0 specification specifies that CErr does not apply to Isoch endpoints and shall be set to '0' for Isoch endpoints. Signed-off-by: Andiry Xu Signed-off-by: Sarah Sharp --- drivers/usb/host/xhci-mem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 543833b9dbad..04145740686c 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1190,12 +1190,12 @@ int xhci_endpoint_init(struct xhci_hcd *xhci, /* FIXME dig Mult and streams info out of ep companion desc */ /* Allow 3 retries for everything but isoc; - * error count = 0 means infinite retries. + * CErr shall be set to 0 for Isoch endpoints. */ if (!usb_endpoint_xfer_isoc(&ep->desc)) ep_ctx->ep_info2 = cpu_to_le32(ERROR_COUNT(3)); else - ep_ctx->ep_info2 = cpu_to_le32(ERROR_COUNT(1)); + ep_ctx->ep_info2 = cpu_to_le32(ERROR_COUNT(0)); ep_ctx->ep_info2 |= cpu_to_le32(xhci_get_endpoint_type(udev, ep)); -- GitLab