git: 5bbf7afe3066 - stable/13 - Update USB_PORT_RESET_RECOVERY to comply with the USB 2.0 specification which says it should be max 10 milliseconds.
Hans Petter Selasky
hselasky at FreeBSD.org
Wed Jun 2 12:24:52 UTC 2021
The branch stable/13 has been updated by hselasky:
URL: https://cgit.FreeBSD.org/src/commit/?id=5bbf7afe30662343487b6cecc43693edc82c5b0e
commit 5bbf7afe30662343487b6cecc43693edc82c5b0e
Author: Hans Petter Selasky <hselasky at FreeBSD.org>
AuthorDate: 2021-05-18 13:22:32 +0000
Commit: Hans Petter Selasky <hselasky at FreeBSD.org>
CommitDate: 2021-06-02 11:25:19 +0000
Update USB_PORT_RESET_RECOVERY to comply with the USB 2.0 specification which
says it should be max 10 milliseconds.
This may fix some USB enumeration issues:
> usbd_req_re_enumerate: addr=3, set address failed! (USB_ERR_IOERROR, ignored)
> usbd_setup_device_desc: getting device descriptor at addr 3 failed,
Found by: Zhichao1.Li at dell.com
Sponsored by: Mellanox Technologies // NVIDIA Networking
(cherry picked from commit 70ffaaa69c830d26b59136d0b0447ab2f8683db8)
---
sys/dev/usb/usb.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sys/dev/usb/usb.h b/sys/dev/usb/usb.h
index 346ecd3059d7..dcdb62114d63 100644
--- a/sys/dev/usb/usb.h
+++ b/sys/dev/usb/usb.h
@@ -115,7 +115,7 @@ MALLOC_DECLARE(M_USBDEV);
/* Allow for marginal and non-conforming devices. */
#define USB_PORT_RESET_DELAY 50 /* ms */
#define USB_PORT_ROOT_RESET_DELAY 200 /* ms */
-#define USB_PORT_RESET_RECOVERY 250 /* ms */
+#define USB_PORT_RESET_RECOVERY 10 /* ms */
#define USB_PORT_POWERUP_DELAY 300 /* ms */
#define USB_PORT_RESUME_DELAY (20*2) /* ms */
#define USB_SET_ADDRESS_SETTLE 10 /* ms */
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