USB memory stick existance checking

Original Message

Name: sudhira
Date: June 23, 2005 at 03:49:39 Pacific
Subject: USB memory stick existance checking
OS: DOS
CPU/Ram: 256MB

Comment:

Hi,
I am trying to use USB memory stick like we use floppies in DOS.
I have achieved it to some extent by loading and unloading
USBASPI.SYS and DI1000DD.SYS drivers. Hence I don't require to switch
OFF my machine. Now if I have some thing that will tell me that my
USB memory stick is present or not. Can anybody help me out. Any kind
of interrupt that is generated if USB memory stick is plugged IN and OUT.
Please help me.
SUDHIR.

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Response Number 1

Name: hiho
Date: June 23, 2005 at 04:26:51 Pacific
Subject: USB memory stick existance checking

Reply: (edit)

AFAIAW USB under Standalone 16bit MS-DOS and compatible does not support hot swapping, and even though you may of "unloaded the driver" it is not advisable to pull out the USB device.
http://www.computing.net/dos/wwwboard/forum/15568.html

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Response Number 2

Name: Mechanix2Go
Date: June 23, 2005 at 05:48:53 Pacific
Subject: USB memory stick existance checking

Reply: (edit)

AFAIK, hiho is right.
When I load the drivers, if the stick is unplugged, it won't be found when it is plugged in, without a reboot.
M2

If at first you don't succeed, you're about average.

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