From: Brad Midgley <bmidgley@xmission.com>
To: BlueZ users <bluez-users@lists.sourceforge.net>
Subject: Re: [Bluez-users] CSR BlueCore4 dongles
Date: Thu, 20 Jul 2006 10:17:46 -0600 [thread overview]
Message-ID: <44BFACAA.40108@xmission.com> (raw)
In-Reply-To: <200607201752.47834.wolfgang@iksw-muees.de>
Wolfgang
>>>the bus has to fall back to usb1 speeds when a usb1 device
>>>on the bus is active.
> The truth is: every USB device needs time to make their transfers.
> Slow devices need more time than fast. The host is switching between
> slow, fast and high speed devices dynamicly.
Sure... I didn't mean to imply that usb2-to-usb2 transfers would start
using usb1 speeds, only that the usb1 device keeps the bus busier than
you might expect. By active I meant transferring data.
All bets are off when data starts getting constricted. My usb2 burner
would choke while burning sometimes if I used a usb mouse on the same bus.
Brad
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prev parent reply other threads:[~2006-07-20 16:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-19 22:28 [Bluez-users] CSR BlueCore4 dongles David Geiger
2006-07-19 23:47 ` Brad Midgley
2006-07-20 7:04 ` Per Thomas Jahr
2006-07-20 15:52 ` Wolfgang Mües
2006-07-20 16:17 ` Brad Midgley [this message]
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