Messages in this thread Patch in this message | | | Subject | Re: [PATCH v1] usb: handle warm-reset port requests on hub_init | From | yangyinglu <> | Date | Wed, 11 Jan 2023 11:32:01 +0800 |
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在 2023/1/11 上午10:33, Kai-Heng Feng 写道: > Hi yangyinglu, > > On Tue, Jan 10, 2023 at 4:20 PM yangyinglu <yangyinglu@loongson.cn> wrote: >> >> USB-C storage device not detected on USB 3.0 host when >> plugged in after boot, so need to warm-reset port > > Is it possible to enable USB dyndbg, plug a USB 3.0 device, then paste > the relevant dmesg here? Thanks! > > Kai-Heng
hi, After entering the system, directly plug and unplug the USB flash disk. usb control is etron Technology Inc.The log is as follows: [ 10.354484] radeon 0000:04:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none [ 10.484794] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 10.506968] tun: Universal TUN/TAP device driver, 1.6 [ 10.514128] virbr0: port 1(virbr0-nic) entered blocking state [ 10.519858] virbr0: port 1(virbr0-nic) entered disabled state [ 10.525646] device virbr0-nic entered promiscuous mode [ 10.666536] virbr0: port 1(virbr0-nic) entered blocking state [ 10.672268] virbr0: port 1(virbr0-nic) entered listening state [ 10.748564] virbr0: port 1(virbr0-nic) entered disabled state
Loongnix GNU/Linux 20 Release 3 loongson-pc ttyS0
loongson-pc login: [ 147.701011] usb usb4-port1: Cannot enable. Maybe the USB cable is bad? [ 151.793206] usb usb4-port1: Cannot enable. Maybe the USB cable is bad? [ 151.799726] usb usb4-port1: attempt power cycle [ 157.465465] usb usb4-port1: Cannot enable. Maybe the USB cable is bad? [ 161.557649] usb usb4-port1: Cannot enable. Maybe the USB cable is bad? [ 161.564167] usb usb4-port1: unable to enumerate USB device [ 165.641834] usb usb4-port1: Cannot enable. Maybe the USB cable is bad?
> >> >> Signed-off-by: yangyinglu <yangyinglu@loongson.cn> >> --- >> drivers/usb/core/hub.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c >> index 77e73fc8d673..bd4496b80c2d 100644 >> --- a/drivers/usb/core/hub.c >> +++ b/drivers/usb/core/hub.c >> @@ -1159,7 +1159,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) >> } >> >> /* Make sure a warm-reset request is handled by port_event */ >> - if (type == HUB_RESUME && >> + if ((type == HUB_RESUME || type == HUB_INIT2) && >> hub_port_warm_reset_required(hub, port1, portstatus)) >> set_bit(port1, hub->event_bits); >> >> -- >> 2.20.1 >>
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