Re: Multiple USB 1.1 devices in USB 2 Hub speed ?

"Adrian" <adrianbica@xxxxxxxxx> wrote in message
news:c11ebd15-e7d7-4b6c-9a72-fac71de01b70@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jul 16, 12:07 pm, Anton Erasmus <nob...@xxxxxxxxxxxxxxxx> wrote:
Hi,

If I have a number of USB 1.1 devices plugged into a USB 2 Hub, can I
get the full 12MB/s of each USB 1.1 device via the USB 2 link to a
host ? Or does the USB 2 link fall back to a 1.1 compatible mode ?


Not sure what's your question, it is a bit confusing. The two
statements around the OR are equivalent.

Briefly:
High speed = 480 Mbps (USB 2.0)
Full Speed = 12Mbps (USB 1.1)
Low Speed = 1.5Mbps (USB 1.1)
USB 2.0 is backward compatible, so is the hub. It should support a mix
of devices.

So, yes, you get the 12Mbps full speed AND yes, the USB 2 link falls
back to 1.1.

And No, you don't get the 12 MB/s for each device. You still get 12 MB/s to
share.

Peter


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