On 03/24/20 14:20, Oliver Neukum wrote: > Am Dienstag, den 24.03.2020, 10:46 +0000 schrieb Qais Yousef: > > > > I should have stuck to what I know then. I misread the documentation. Hopefully > > the attached looks better. I don't see the new debug you added emitted. > > That is odd. Please try > > echo "module usbcore +mfp" > /sys/kernel/debug/dynamic_debug/control > > with the attached improved patch. Hmm still no luck # history 0 echo "module usbcore +mfp" > /sys/kernel/debug/dynamic_debug/control 1 swapoff -a 2 echo suspend > /sys/power/disk 3 echo disk > /sys/power/state 4 dmesg > usb.dmesg # grep "URB allocated" /sys/kernel/debug/dynamic_debug/control drivers/usb/core/hub.c:1632 [usbcore]hub_configure =pmf "%p URB allocated \012" $ git log -p commit dfd1731f9a3e7592135d2a6b2a5c5e1640a7eea4 (HEAD) Author: Oliver Neukum Date: Mon Mar 23 16:34:35 2020 +0100 usb: hub additional debugging diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 54cd8ef795ec..12ce2fdc4c2a 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1629,6 +1629,7 @@ static int hub_configure(struct usb_hub *hub, ret = -ENOMEM; goto fail; } + dev_dbg(hub_dev, "%p URB allocated \n", hub->urb); usb_fill_int_urb(hub->urb, hdev, pipe, *hub->buffer, maxp, hub_irq, hub, endpoint->bInterval); Thanks -- Qais Yousef