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Is USB 1.0 forward-compatible with USB 2.0?
I've read a lot of contradictory opinions on some other websites' forums.
"tous les sifflets des trains, toutes les sirènes des bateaux
m'ont chanté cent fois la chanson de l'Eldorado"
rechi+
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Bogdan Rechi wrote:
Is USB 1.0 forward-compatible with USB 2.0?
Hope I have understood your question correctly. I haven't used USB 1.0 (I think) as even my oldest board had USB 1.1 on it.
If your question is asking if a USB 2.0 device can be used on a USB 1.1 port, the answer is yes, though of course it will only work at 12Mb/s and not USB 2.0's 480Mb/s.
The same if you meant plugging a USB 1.1 device into a USB 2.0 port.
Windows XP will even tell you when you have a 2.0 device plugged into a 1.1 port. It suggests using a 2.0 port to get maximum speed.
Michael Martin
Australia
"I controlled my laughter and simple said "No,I am very busy,so I can't write any code for you". The moment they heard this all the smiling face turned into a sad looking face and one of them farted. So i had to leave the place as soon as possible."
- Mr.Prakash 24/04/2004
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Thank you for the replay.
I need a memory stick for an old laptop which runs Win98, it would be good for backup and transfer of data. Unfortunately i cannot figure out what version the USB port is, so i have to think about 1.0 too.
Michael Martin wrote:
a USB 2.0 device can be used on a USB 1.1 port, the answer is yes
The forward compatibility 1.1 has towards 2.0 is certain but i know nothing about the relation between 1.0 and 2.0 - in this order.
"tous les sifflets des trains, toutes les sirènes des bateaux
m'ont chanté cent fois la chanson de l'Eldorado"
rechi+
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1. How can one find out, from which drive the actual program has been loaded from?
2. How can one find out, what kind of drive that is (floppy disk, RAMdisk, fixed volume, CDROM, etc.)? I found something re Stylebit of Removable Volume, but I did not find how to get it in C++.
Thanks
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1) Parse the result from GetModuleFileName
2) Pass the result of 1) into GetDriveType
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Thankx; I was looking for just these functions
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Hi Guys,
Does anyone have a clue how to get NVidia PAL/NTSC settings info
Thanks all
Cheers
Dejan
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How do I erase or reset my virtual memory paging file? It would really improve my computer performance but I just simply do not know how. 
If you can help email me at lilbadboy52004@yahoo.com , or reply to the thread.
---Jordan---
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Is there anything that works with Win98 ? (I have a number of applications which get "Invalid Page Fault" in module <unknown> where the address 00de:00000000 is always the same - I think the swap file may be corrupt)
Doug
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I don't think that's your problem, but set the swapfile to 0 bytes, let windows reboot itself, then restore it to it's normal size. I think it's set under control panel -system in 98.
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I think you're right - I've changed the sizeof the swap file and even the disk, and I STILL get the failure. Any idea what it could be / experiments to perform ?
Doug
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Reinstall windows. After doing that and reinstalling all your apps make a HD image so your next restore will be relatively painless.
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Dan, I'm trying to avoid reinstalling Win98 and all my DD's and apps - it's such a pain ! Investigating every other possible avenue first, but agree that OS reinstall may ultimately be the only way !
Doug
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Which application crashes with this error? Is it Windows Explorer?
Farhan Noor Qureshi
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It appears to be whatever app I use with my TV Tuner.I had been using Intervideo WinDVR for quite a few months (not everything worked !), but tried a few others and got the same results at some point or other. I'm double-double checking that I have the latest drivers for the MSI 8606 card at present (but I'm fairly sure that I am)
Doug
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Yes, the drivers seem to be up to date.
Doug
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00000000 is always an invalid address, regardless of the page file status. What is more interesting is the segment (00DE). DE is 11011110, which indicates a privilege-level 2 segment. Windows does not use privilege level 2 - only 0 and 3! Therefore there is a serious bug with some software - your TV tuner driver, most likely - and clearing the virtual memory page file would not help.
If the drivers are up-to-date, use device manager (whereever it is on 98) and see if there are any hardware conflicts. Other than that, I can't think of much else...
Mike
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Thanks for the info, Mike.
Doug
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How do I do a keyboard driver?
Can anyone point me to where I can get excisting one?
I want to program one. But I don't know really how.
The thing I got now looks like this[^] but I want it to be a driver.
How can I acomplish that?
Niklas Ulvinge aka IDK
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hi
it might be easy to connect your LED with parallel port output pins for turning on and off
but how can i connect my turned on LED(with 3v cell) to my parallel port data input port to asceraint programmatically whether it is on or on please help me
how can i do this
if somebody have programmes related to this in vb 6 or C++
please provide me these
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hi,
1. connect a light cell to the input port and the ground
2. face it with the led powered from an output pin or you can connect the output pins to a relay "coil" and the relay "switch" back to the input ports but be carefull. or you can skip all the hardware parts and do it programatically
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Hi,
If any one backed up device driver articles material published in codeproject, can you please mail them to jagadeeshrpind@yahoo.com
Thanks in advance.
jagadeesh
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Is this a joke?
Don't try it, just do it! 
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