Rockbox Technical Forums

Support and General Use => Hardware => Topic started by: ryc on November 16, 2008, 09:55:31 PM

Title: transfer speeds on Rockboxed iRiver ihp-120 USB 1.1? 2.0?
Post by: ryc on November 16, 2008, 09:55:31 PM
hey all

I've recently purchased a Rockboxed IHP-120 and notice when moving files onto it the transfer speeds are quite slow? 1 album (100mb) is taking approx 5mins?   Is this normal? 
Title: Re: transfer speeds on Rockboxed iRiver ihp-120 USB 1.1? 2.0?
Post by: Llorean on November 16, 2008, 09:57:46 PM
This isn't a question about installing Rockbox. Please, read the POSTING IN THIS FORUM posts before posting in the future.

USB is hardware controlled on the iHP-120. While this sounds somewhat slow, it's not something that Rockbox should affect.
Title: Re: transfer speeds on Rockboxed iRiver ihp-120 USB 1.1? 2.0?
Post by: Multiplex on November 17, 2008, 01:37:33 PM
As Llorean says the USB on the H100 is driven by dedicated hardware and has nothing to do with Rockbox (once Rockbox enables it), but I have experienced a similar issue with one of my iRivers (possibly the H300 but I thing that part of the hardware is the same).

Using one specific cable on one port of my desktop it doesn't do USB2, changing the cable or trying a different port solves it.
Title: Re: transfer speeds on Rockboxed iRiver ihp-120 USB 1.1? 2.0?
Post by: gevaerts on November 17, 2008, 03:56:21 PM
Why is it that people keep confusing USB 2.0 and USB high speed? USB 2.0 defines three speeds : low speed (1.5Mbit/s, typically used for mice and keyboards), full speed (12MBit/s) and high speed (480MBit/s).  "It doesnt do USB 2" is meaningless! A device that connects at 12MBit for whatever reason doesn't magically become a "USB 1.1" device, it's still 2.0.
Title: Re: transfer speeds on Rockboxed iRiver ihp-120 USB 1.1? 2.0?
Post by: Multiplex on November 18, 2008, 08:36:51 AM
"It doesnt do USB 2" is meaningless!
Whilst technically you are no doubt correct the reason for having USB2 in most people's eyes is to get the high speed - so in slack, non technical speech, it makes some sense. (and at work it's usually me making points like yours!;-)

I think that I got the Windows "This device can perform faster" message but it was a long time ago and I can't be sure.
Title: Re: transfer speeds on Rockboxed iRiver ihp-120 USB 1.1? 2.0?
Post by: Llorean on November 18, 2008, 03:23:23 PM
Yes, but these are technical forums, and people should use technical speech here.

We can't just go guessing what's being said because, among other things, what if they actually mean what they typed rather than what we guessed?

Instead, everyone need to take their time, and type clearly. Then we can read what was actually typed on the screen, and respond to it.