From 2dea6902a94ef29850bd8203aa44f9dc8ecc3ac5 Mon Sep 17 00:00:00 2001 From: Hans Petter Selasky Date: Fri, 28 Aug 2020 19:21:11 +0000 Subject: [PATCH] Allow slow USB devices to be given more time to return their USB descriptors, like Logitech HD Pro Webcam C920. PR: 248926 MFC after: 1 week Sponsored by: Mellanox Technologies --- sys/dev/usb/usb_request.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/sys/dev/usb/usb_request.c b/sys/dev/usb/usb_request.c index 73e9874cb466..32bf0a9435ef 100644 --- a/sys/dev/usb/usb_request.c +++ b/sys/dev/usb/usb_request.c @@ -721,7 +721,8 @@ usbd_do_request_flags(struct usb_device *udev, struct mtx *mtx, case USB_ERR_CANCELLED: break; default: - DPRINTF("I/O error - waiting a bit for TT cleanup\n"); + DPRINTF("error=%s - waiting a bit for TT cleanup\n", + usbd_errstr(err)); usb_pause_mtx(mtx, hz / 16); break; } @@ -1010,7 +1011,7 @@ usbd_req_get_desc(struct usb_device *udev, USETW(req.wLength, min_len); err = usbd_do_request_flags(udev, mtx, &req, - desc, 0, NULL, 500 /* ms */); + desc, 0, NULL, 1000 /* ms */); if (err != 0 && err != USB_ERR_TIMEOUT && min_len != max_len) { @@ -1021,7 +1022,7 @@ usbd_req_get_desc(struct usb_device *udev, USETW(req.wLength, max_len); err = usbd_do_request_flags(udev, mtx, &req, - desc, USB_SHORT_XFER_OK, NULL, 500 /* ms */); + desc, USB_SHORT_XFER_OK, NULL, 1000 /* ms */); if (err == 0) { /* verify length */