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> How To Identify Usb Host Cable?
Viking
post Apr 13 2006, 07:02 AM
Post #16





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some technical note:
the mini usb connector uses 5 contacs
(
the normal "bigger" connector uses 4 contacts
2 for power/ground
2 for signals
)

the mini usb connetor uses
2 for power
2 for signals
and one magic conntact
this conntact is not used on dump cable-changers
but on hostcabels its wired ( maybe with resistor) to ground ( i am not shure if its ground
or power, but it is linked with some outside connector )
so its possible for the usbdriver to check if there is an hostcable by asking the state of this magic pin.
if it is an hostcable the driver turns power on and start useing it as host.
if this magic pin has no connection then the driver uses client mode.

so its possible to use any adaptor-cable by overrideing the driver function asking the state of the pin. ATTENTION !! this DESTROY your zaurus if you connect to an PC and switch in hostmode ....... ( i think .. i nerver tried it ... so my zaurus lives )

but you can also use some measure device and small needel s to check
if your adaptercable has wired ( mybe with resistor ) pins between 1-2 or 4-5
( depends how you are counting )

if it is wired you got an hostcable
if not its and dump changer ...

ih hope this helps
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Meanie
post Apr 13 2006, 05:03 PM
Post #17





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QUOTE(Viking @ Apr 14 2006, 01:02 AM)
some technical note:
the mini usb connector uses 5 contacs
(
the normal "bigger" connector uses 4 contacts
2 for power/ground
2 for signals
)

the mini usb connetor uses
2 for power
2 for signals
and one magic conntact
this conntact is not used on dump cable-changers
but on hostcabels its wired ( maybe with resistor) to ground ( i am not shure if its ground
or power, but it is linked  with some outside connector )
so its possible for the usbdriver to check if there is an hostcable by asking the state of this magic pin.
if it is an hostcable the driver turns power on and start useing it as host.
if this magic pin has no connection then the driver uses client mode.

so its possible to use any adaptor-cable  by overrideing the driver function asking the state of the pin. ATTENTION !! this DESTROY your zaurus if you connect to an PC and switch in hostmode ....... ( i think .. i nerver tried it ... so my zaurus lives )

but you can also use some measure device and small needel s to check
if your adaptercable has wired ( mybe with resistor ) pins between 1-2 or 4-5
( depends how you are counting )

if it is wired you got an hostcable
if not its and dump changer ...

ih hope this helps
*


I would be very careful with doing this. In host mode, the Z is expected to provide power while in client mode, the host pc will provide power to the Z which it is not supposed to accept, because if it does, it fries sad.gif If you really can't find a host cable, then you are better off hacking a normal cable and connecting the magic pin. There is plenty of guides online with picture illustrations showing how this can be done. I would advise not to change the behaviour in the driver/software code since accidents may happen and you can accidentally switch mode or worst, misconfigured hotplug mechanism does it for you and suddenly, your Z is smoking.
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Viking
post Apr 14 2006, 07:35 AM
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QUOTE(Meanie @ Apr 14 2006, 02:03 AM)
I would be very careful with doing this. In host mode, the Z is expected to provide power while in client mode, the host pc will provide power to the Z which it is not supposed to accept, because if it does, it fries sad.gif If you really can't find a host cable, then you are better off hacking a normal cable and connecting the magic pin. There is plenty of guides online with picture illustrations showing how this can be done. I would advise not to change the behaviour in the driver/software code since accidents may happen and you can accidentally switch mode or worst, misconfigured hotplug mechanism does it for you and suddenly, your Z is smoking.
*


I said this with ATTENTION !!!!!

and mentioned that this will kill the zaurus.
( connectiong to an 6 Volts powered hup is also a bad thing )

but for detecting if an plugcable is host or for client use, its very easy to measure it
with an multimeter ....
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beresmed
post Jul 3 2006, 11:30 AM
Post #19





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I have Zaurus C1000 and i need USB host cable. I can buy this USB cable pack from Sweex, but i don't know it contains USB host cable?

Is USB host cable = cable with USB mini 5 pin connector?

http://www.sweex.com/product.asp?pId=479
http://www.sweex.com/product.asp?pid=479&s=0

Regards,
Toni
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Meanie
post Jul 3 2006, 01:16 PM
Post #20





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QUOTE(beresmed @ Jul 4 2006, 05:30 AM)
I have Zaurus C1000 and i need USB host cable. I can buy this USB cable pack from Sweex, but i don't know it contains USB host cable?

Is USB host cable = cable with USB mini 5 pin connector?

http://www.sweex.com/product.asp?pId=479
http://www.sweex.com/product.asp?pid=479&s=0

Regards,
Toni
*


it's probably a mini b which is also 5 pin
chances are if it does not mention mini a, then it is not a mini a
besides, mini a should have a white enclosing but not everyone is following this standard
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Tom61
post Jul 3 2006, 01:17 PM
Post #21





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QUOTE(beresmed @ Jul 3 2006, 07:30 PM)
I have Zaurus C1000 and i need USB host cable. I can buy this USB cable pack from Sweex, but i don't know it contains USB host cable?

Is USB host cable = cable with USB mini 5 pin connector?

http://www.sweex.com/product.asp?pId=479
http://www.sweex.com/product.asp?pid=479&s=0

Regards,
Toni
*


The USB host adapter is mini 4 pin type A male to 4 pin type A female. I'm not sure if this includes the right adapter, as the image is far too small to make out the adapter. It likely does, but I cannot be positive.
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portalgod
post May 10 2007, 10:13 AM
Post #22





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From: Miami, Fl USA
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QUOTE(Tom61 @ Jul 3 2006, 02:17 PM)
QUOTE(beresmed @ Jul 3 2006, 07:30 PM)
I have Zaurus C1000 and i need USB host cable. I can buy this USB cable pack from Sweex, but i don't know it contains USB host cable?

Is USB host cable = cable with USB mini 5 pin connector?

http://www.sweex.com/product.asp?pId=479
http://www.sweex.com/product.asp?pid=479&s=0

Regards,
Toni
*


The USB host adapter is mini 4 pin type A male to 4 pin type A female. I'm not sure if this includes the right adapter, as the image is far too small to make out the adapter. It likely does, but I cannot be positive.
*




Just as a confirmation, i bought the 6:1 kit from Walgreens and the connectors work like a charm. Unfortunately now I've got a 6 foot USB Host cable, where I need to plug in my 6ft cable USB GPS. I walk around with a Z in one hand and 12 feet of wire in the other smile.gif
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louigi600
post Jul 20 2007, 04:26 AM
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If anyone is stuck and likes to take the risk of making a homebrew one I've documented how to make a normal mini-b plug into a mini-a plug.
I've posted somewhere on OESF about it and it's documented on my home page.

Since the documentation I've also made one very much shorted (so short that the metal shealding od the connectors are soldered together). It's very neat but be carfull because such a short one fas no flexibility ... a usb dongle will stick out a lot from the back of the Z and if you knock it anywhere you may damage the Z.
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