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NUSB22e.exe crashes on card removal

 
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DerekRJ



Joined: 16 Jun 2006
Posts: 3

PostPosted: Fri Jun 16, 2006 10:40 am    Post subject: NUSB22e.exe crashes on card removal Reply with quote

NUSB22e is working well with my USB SD card reader, until I remove a card when it crashes. I also note that if I boot my computer with the card reader connected but no card present it gives a Windows Protection Error.

I have found a work around which is to ensure that I am exploring another disk (e.g C:) when changing a SD Card this seems OK but this is a pain.

Any ideas?
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SoftStag



Joined: 05 Feb 2006
Posts: 2049
Location: UK

PostPosted: Fri Jun 16, 2006 3:12 pm    Post subject: Reply with quote

This is not something I have come accross before, can you let me know what card reader you are using?
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"Microsoft programs are generally bug-free. If you visit the Microsoft hotline, you'll literally have to wait weeks if not months until someone calls in with a bug in one of our programs. 99.99% of calls turn out to be user mistakes. I know not a single less irrelevant reason for an update than bugfixes. The reasons for updates are to present more new features."
-- Bill Gates, on code stability, from Focus Magazine
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DerekRJ



Joined: 16 Jun 2006
Posts: 3

PostPosted: Mon Jun 19, 2006 6:46 pm    Post subject: Reply with quote

It is a card reader I designed a coded. It operates to USB 1.1 and Bulk Transfer protocol and works well in Windows XP and 2000.

I Could capture a power up and card removal USB stream and see which messages it send before the error sare reported. I'll do this and post anything of interest that I find. I will also test a different card reader that I purchased and post what I find.
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SoftStag



Joined: 05 Feb 2006
Posts: 2049
Location: UK

PostPosted: Tue Jun 20, 2006 9:33 am    Post subject: Reply with quote

Interesting that you made your own card reader.

There is an updated inf file for the nusb22e drivers that can be downloaded from here:
Nusb22e update

To install, unzip the download, copy the file USBSTOR.INF in to the hidden catalogue WINDOWS\INF\ replacing the old file. This needs to be done with the Nusb22e drivers already installed!

This update should give greater compatibility, let us know how you get on with it.
_________________
"Microsoft programs are generally bug-free. If you visit the Microsoft hotline, you'll literally have to wait weeks if not months until someone calls in with a bug in one of our programs. 99.99% of calls turn out to be user mistakes. I know not a single less irrelevant reason for an update than bugfixes. The reasons for updates are to present more new features."
-- Bill Gates, on code stability, from Focus Magazine
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DerekRJ



Joined: 16 Jun 2006
Posts: 3

PostPosted: Tue Jun 27, 2006 11:13 am    Post subject: Reply with quote

I have now resolved the issue and the nusb22e software is working well. I was replying to the SCSI "Read Capacity" command with a 0 value, followed by a command NAK when the card was out. I now Stall the USB bus instead and everything is well.

Thanks for you help.
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SoftStag



Joined: 05 Feb 2006
Posts: 2049
Location: UK

PostPosted: Tue Jun 27, 2006 11:34 am    Post subject: Reply with quote

Excellent! I'm glad to hear you got it sorted.

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"Microsoft programs are generally bug-free. If you visit the Microsoft hotline, you'll literally have to wait weeks if not months until someone calls in with a bug in one of our programs. 99.99% of calls turn out to be user mistakes. I know not a single less irrelevant reason for an update than bugfixes. The reasons for updates are to present more new features."
-- Bill Gates, on code stability, from Focus Magazine
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