From: Mathias Nyman <firstname.lastname@example.org>
To: Alan Stern <email@example.com>
Cc: Kishon Vijay Abraham I <firstname.lastname@example.org>,
Mathias Nyman <email@example.com>,
Greg Kroah-Hartman <firstname.lastname@example.org>,
Lokesh Vutla <email@example.com>
Subject: Re: [QUERY] Cold plugged USB device to Inateck PCIE USB card is not detected
Date: Fri, 20 Aug 2021 11:26:52 +0300 [thread overview]
Message-ID: <firstname.lastname@example.org> (raw)
On 19.8.2021 18.09, Alan Stern wrote:
> On Thu, Aug 19, 2021 at 04:18:12PM +0300, Mathias Nyman wrote:
>> On 19.8.2021 10.54, Kishon Vijay Abraham I wrote:
>>> Hi All,
>>> I was trying to test PCIe USB card (Inateck) connected to AM64 EVM and
>>> J7200 EVM. Inateck uses Renesas uPD720201 USB3 host controller.
>>> So if I connect USB pendrive and then boot the board (cold plug), I
>>> don't see the pendrive getting detected. But if I remove and plug it
>>> again, it gets detected.
>>> For the cold plug case, I see this message
>>> "usb usb1-port3: couldn't allocate usb_device"
>>> It actually fails in
>>> I'm not familiar with xhci but it looks like port event is invoked
>>> before the controller is fully initialized (?).
>> Maybe this controller is capable of generating interrupts before it's running?
> Mathias and Kishon:
> Note that this issue has also been reported in Bugzilla:
I'll follow up on that one.
next prev parent reply other threads:[~2021-08-20 8:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-19 7:54 [QUERY] Cold plugged USB device to Inateck PCIE USB card is not detected Kishon Vijay Abraham I
2021-08-19 13:18 ` Mathias Nyman
2021-08-19 15:09 ` Alan Stern
2021-08-20 8:26 ` Mathias Nyman [this message]
2021-08-20 12:18 ` Kishon Vijay Abraham I
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