On Thu, Oct 16, 2014 at 2:45 PM, Oliver Neukum <oneukum@xxxxxxx> wrote:
>
> On Wed, 2014-10-15 at 12:11 -0400, Alan Stern wrote:
> > > If the hub is the problem… what will be the better solution? Is it
> > > possible to change internal hub?
> >
> > No, it is not possible.
>
> Indeed. However, it is possible to use an additional in between your
> devices and the internal hub.
>
> Regards
> Oliver
>
>
Tested with this configuration(external hubs Dev 3, Dev 4, Dev 17, Dev
10) and got the same result.
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=hub, Driver=hub/6p, 480M
|__ Port 5: Dev 3, If 0, Class=hub, Driver=hub/7p, 12M
|__ Port 1: Dev 4, If 0, Class=hub, Driver=hub/7p, 12M
|__ Port 1: Dev 11, If 0, Class=vend., Driver=, 12M
|__ Port 2: Dev 12, If 0, Class=vend., Driver=, 12M
|__ Port 3: Dev 13, If 0, Class=vend., Driver=, 12M
|__ Port 4: Dev 14, If 0, Class=vend., Driver=, 12M
|__ Port 5: Dev 15, If 0, Class=vend., Driver=, 12M
|__ Port 6: Dev 16, If 0, Class=vend., Driver=, 12M
|__ Port 7: Dev 17, If 0, Class=hub, Driver=hub/2p, 12M
|__ Port 1: Dev 21, If 0, Class=vend., Driver=, 12M
|__ Port 2: Dev 22, If 0, Class=vend., Driver=, 12M
|__ Port 2: Dev 5, If 0, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 2: Dev 5, If 1, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 2: Dev 5, If 2, Class=app., Driver=, 12M
|__ Port 3: Dev 6, If 0, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 3: Dev 6, If 1, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 3: Dev 6, If 2, Class=app., Driver=, 12M
|__ Port 4: Dev 7, If 0, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 4: Dev 7, If 1, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 4: Dev 7, If 2, Class=app., Driver=, 12M
|__ Port 5: Dev 8, If 0, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 5: Dev 8, If 1, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 5: Dev 8, If 2, Class=app., Driver=, 12M
|__ Port 6: Dev 9, If 0, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 6: Dev 9, If 1, Class='bInterfaceClass 0xe0 not
yet handled', Driver=btusb, 12M
|__ Port 6: Dev 9, If 2, Class=app., Driver=, 12M
|__ Port 7: Dev 10, If 0, Class=hub, Driver=hub/3p, 12M
|__ Port 1: Dev 18, If 0, Class='bInterfaceClass 0xe0
not yet handled', Driver=btusb, 12M
|__ Port 1: Dev 18, If 1, Class='bInterfaceClass 0xe0
not yet handled', Driver=btusb, 12M
|__ Port 1: Dev 18, If 2, Class=app., Driver=, 12M
|__ Port 2: Dev 19, If 0, Class='bInterfaceClass 0xe0
not yet handled', Driver=btusb, 12M
|__ Port 2: Dev 19, If 1, Class='bInterfaceClass 0xe0
not yet handled', Driver=btusb, 12M
|__ Port 2: Dev 19, If 2, Class=app., Driver=, 12M
|__ Port 3: Dev 20, If 0, Class='bInterfaceClass 0xe0
not yet handled', Driver=btusb, 12M
|__ Port 3: Dev 20, If 1, Class='bInterfaceClass 0xe0
not yet handled', Driver=btusb, 12M
|__ Port 3: Dev 20, If 2, Class=app., Driver=, 12M
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