[gentoo-user] [OT] USB hard drive puzzle

[gentoo-user] [OT] USB hard drive puzzle

[walt]

I have an add-on usb3 adapter (based on ASMedia ASM1042 usb chip, using xhci
kernel driver), which I dearly love except for one very annoying 'feature' ;)

When I power up the outboard hard-disk docking station (plugged into the usb3
adapter) the computer never sees the docking station or its hard disk until
I reboot the computer.  Something in the BIOS apparently resets some hardware
thingy, and then it all works extremely well thereafter.

Having to reboot the computer to use a usb docking station kinda defeats the
whole point of usb. (Or am I just being grumpy? :)

Can anyone think of some trick I could use in lieu of rebooting to get the
adapter/disk combination properly initialized?

Any hints would be very much appreciated.

Re: [gentoo-user] [OT] USB hard drive puzzle

[Neil Bothwick]

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On Thu, 07 Jun 2012 15:53:53 -0700, walt wrote:

> When I power up the outboard hard-disk docking station (plugged into
> the usb3 adapter) the computer never sees the docking station or its
> hard disk until I reboot the computer.  Something in the BIOS
> apparently resets some hardware thingy, and then it all works extremely
> well thereafter.
> 
> Having to reboot the computer to use a usb docking station kinda
> defeats the whole point of usb. (Or am I just being grumpy? :)

There's nothing wrong with being grumpy.


> Can anyone think of some trick I could use in lieu of rebooting to get
> the adapter/disk combination properly initialized?

Does unloading and reloading the xhci module help?


-- 
Neil Bothwick

Veni, vermini, vomui
I came, I got ratted, I threw up

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[gentoo-user] Re: [OT] USB hard drive puzzle

[walt]

On 06/07/2012 05:09 PM, Neil Bothwick wrote:
> On Thu, 07 Jun 2012 15:53:53 -0700, walt wrote:
> 
>> When I power up the outboard hard-disk docking station (plugged into
>> the usb3 adapter) the computer never sees the docking station or its
>> hard disk until I reboot the computer.  Something in the BIOS
>> apparently resets some hardware thingy, and then it all works extremely
>> well thereafter.
>>
>> Having to reboot the computer to use a usb docking station kinda
>> defeats the whole point of usb. (Or am I just being grumpy? :)
> 
> There's nothing wrong with being grumpy.

Hm.  I'll send you my wife's email address off-list.

>> Can anyone think of some trick I could use in lieu of rebooting to get
>> the adapter/disk combination properly initialized?
> 
> Does unloading and reloading the xhci module help?

Brilliant :)  It does indeed, thanks.

[gentoo-user] Re: [OT] USB hard drive puzzle

[Nikos Chantziaras]

On 08/06/12 14:52, walt wrote:
>> Does unloading and reloading the xhci module help?
>
> Brilliant :)  It does indeed, thanks.

Might be worth reporting as a bug perhaps.  Or ask around on LKML.

Re: [gentoo-user] Re: [OT] USB hard drive puzzle

[Paul Hartman]

On Fri, Jun 8, 2012 at 9:32 AM, Nikos Chantziaras <realnc@gmail.com> wrote:
> On 08/06/12 14:52, walt wrote:
>>>
>>> Does unloading and reloading the xhci module help?
>>
>>
>> Brilliant :)  It does indeed, thanks.
>
>
> Might be worth reporting as a bug perhaps.  Or ask around on LKML.

Maybe post about it to the usb-storage mailing list, the people who
write those drivers might be hanging out there. It is a low-volume
list so maybe a higher chance of being seen than LKML.

https://groups.google.com/a/lists.one-eyed-alien.net/group/usb-storage

[gentoo-user] Re: [OT] USB hard drive puzzle

[walt]

On 06/08/2012 08:13 AM, Paul Hartman wrote:
> On Fri, Jun 8, 2012 at 9:32 AM, Nikos Chantziaras <realnc@gmail.com> wrote:
>> On 08/06/12 14:52, walt wrote:
>>>>
>>>> Does unloading and reloading the xhci module help?
>>>
>>>
>>> Brilliant :)  It does indeed, thanks.
>>
>>
>> Might be worth reporting as a bug perhaps.  Or ask around on LKML.
> 
> Maybe post about it to the usb-storage mailing list, the people who
> write those drivers might be hanging out there. It is a low-volume
> list so maybe a higher chance of being seen than LKML.
> 
> https://groups.google.com/a/lists.one-eyed-alien.net/group/usb-storage

Well, Greg K-H said it sounded to him like a pci hotplug issue and
sure enough, adding pci_hotplug got it working.

That leaves me wondering how a mere mortal tells the difference
between a broken driver and a missing driver.  Ask a kernel dev,
obviously :)