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From: Shadow on 19 Jan 2010 18:10
I bought a cable (sold as an USB AM/AF extension chord).to
plug into the back of my PC so I could read USB flash drives without
having to get up and poke behind the cabinet.
I can't see the USB drives under windows XP, but can read and
write under linux. My linux wireless USB also works fine using this
cable, in fact its very useful for finding the best spots in the room.

Note these USB flash drives work fine without the cable

Does linux use different wires ? What is wrong with this cable
? I have another cable from the same makers that works fine.
TIA
[]'s
From: Nico Kadel-Garcia on 19 Jan 2010 20:01
On Jan 19, 6:10 pm, Shadow <Sh(a)dow> wrote:
>         I bought a cable (sold as an USB AM/AF extension chord).to
> plug into the back of my PC so I could read USB flash drives without
> having to get up and poke behind the cabinet.

What is the manufacturer and part number? And how long is the cable,
and what are you connecting it to?

Your difficulties make me wonder whether you are running at the limit
of some subtle specification, such as frequency or power consumption
among the devices, and the Linux setup is intelligently dropping the
frequency down to USB 1.1 levels under the stressed situation.

>         I can't see the USB drives under windows XP, but can read and
> write under linux. My linux wireless USB also works fine using this
> cable, in fact its very useful for finding the best spots in the room.
>
>         Note these USB flash drives work fine without the cable
>
>         Does linux use different wires ? What is wrong with this cable
> ?  I have another cable from the same makers that works fine.
>         TIA
>         []'s

From: Shadow on 19 Jan 2010 20:24
On Tue, 19 Jan 2010 17:01:19 -0800 (PST), Nico Kadel-Garcia
<nkadel(a)gmail.com> wrote:

>On Jan 19, 6:10�pm, Shadow <Sh(a)dow> wrote:
>> � � � � I bought a cable (sold as an USB AM/AF extension chord).to
>> plug into the back of my PC so I could read USB flash drives without
>> having to get up and poke behind the cabinet.
>
>What is the manufacturer and part number? And how long is the cable,
>and what are you connecting it to?
It's a 1.8 meter Forceline model 3285 AM/AF, so way below the
5m limit for USB 2 or even 3m (?) for USB 1.1 standards.
Bought it at the local supermarket.
http://www.forceline.com.br/novosite/Detalhe.aspx?Id_Linha=2&Id_Produto=3631
Cost about 4 dollars. So if its a dud not really worried. Just
wondering why linux sees it and XP does not.
[]'s
>
>Your difficulties make me wonder whether you are running at the limit
>of some subtle specification, such as frequency or power consumption
>among the devices, and the Linux setup is intelligently dropping the
>frequency down to USB 1.1 levels under the stressed situation.
>
>> � � � � I can't see the USB drives under windows XP, but can read and
>> write under linux. My linux wireless USB also works fine using this
>> cable, in fact its very useful for finding the best spots in the room.
>>
>> � � � � Note these USB flash drives work fine without the cable
>>
>> � � � � Does linux use different wires ? What is wrong with this cable
>> ? �I have another cable from the same makers that works fine.
>> � � � � TIA
>> � � � � []'s
From: Shadow on 20 Jan 2010 13:24
On Tue, 19 Jan 2010 17:01:19 -0800 (PST), Nico Kadel-Garcia
<nkadel(a)gmail.com> wrote:

>On Jan 19, 6:10�pm, Shadow <Sh(a)dow> wrote:
>> � � � � I bought a cable (sold as an USB AM/AF extension chord).to
>> plug into the back of my PC so I could read USB flash drives without
>> having to get up and poke behind the cabinet.
>
>What is the manufacturer and part number? And how long is the cable,
>and what are you connecting it to?
Sorry, I thought I'd been clear. One end is plugged into the
USB slot at the back of the PC cabinet. The other end dangles down by
my knees. When I need to plug in a USB flash drive, I plug it into the
cable's slot, no need to get up and fiddle around looking for the
right hole round the back of my table.
So windows puts up a fuss about "new hardware found", and does
not read USB. Linux mounts and reads it , and writes, if needed.
Without the cable, ie, plugging the USB directly into the back
of the cabinet, and both OS recognize it immediately.
>
>Your difficulties make me wonder whether you are running at the limit
>of some subtle specification, such as frequency
At 1.8meters, don't think so.
>or power consumption
>among the devices, and the Linux setup is intelligently dropping the
>frequency down to USB 1.1 levels under the stressed situation.

>
>> � � � � I can't see the USB drives under windows XP, but can read and
>> write under linux. My linux wireless USB also works fine using this
>> cable, in fact its very useful for finding the best spots in the room.
>>
>> � � � � Note these USB flash drives work fine without the cable
>>
>> � � � � Does linux use different wires ? What is wrong with this cable
>> ? �I have another cable from the same makers that works fine.
>> � � � � TIA
>> � � � � []'s
From: Dave Matthews on 20 Jan 2010 23:57
On Jan 20, 6:24 pm, Shadow <Sh(a)dow> wrote:
> On Tue, 19 Jan 2010 17:01:19 -0800 (PST), Nico Kadel-Garcia
>
> <nka...(a)gmail.com> wrote:
> >On Jan 19, 6:10 pm, Shadow <Sh(a)dow> wrote:
> >> I bought a cable (sold as an USB AM/AF extension chord).to
> >> plug into the back of my PC so I could read USB flash drives without
> >> having to get up and poke behind the cabinet.
>
> >What is the manufacturer and part number? And how long is the cable,
> >and what are you connecting it to?
>
>         Sorry, I thought I'd been clear. One end is plugged into the
> USB slot at the back of the PC cabinet. The other end dangles down by
> my knees. When I need to plug in a USB flash drive, I plug it into the
> cable's slot, no need to get up and fiddle around looking for the
> right hole round the back of my table.
>         So windows puts up a fuss about "new hardware found", and does
> not read USB. Linux mounts and reads it , and writes, if needed.
>         Without the cable, ie, plugging the USB directly into the back
> of the cabinet, and both OS recognize it immediately.
>
> >Your difficulties make me wonder whether you are running at the limit
> >of some subtle specification, such as frequency
>
>         At 1.8meters, don't think so.
>
> >or power consumption
> >among the devices, and the Linux setup is intelligently dropping the
> >frequency down to USB 1.1 levels under the stressed situation.
>
> >> I can't see the USB drives under windows XP, but can read and
> >> write under linux. My linux wireless USB also works fine using this
> >> cable, in fact its very useful for finding the best spots in the room.
>
> >> Note these USB flash drives work fine without the cable
>
> >> Does linux use different wires ? What is wrong with this cable
> >> ? I have another cable from the same makers that works fine.
> >> TIA
> >> []'s


That sounds very familiar with my experiences today and came to a
conclusion some microsoft update has screwed up. It works on a clean
(no updates) computer but with a current and up to date Windows XP -
it doesn't.

Try it on another computer without any updates and get back to me
please.
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