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Re: Confusion over drivers vs. driver interfaces

Subject: Re: Confusion over drivers vs. driver interfaces
From: Barry Twycross <email@hidden>
Date: Wed, 22 Jan 2003 10:04:07 -0800

At 10:48 PM -0500 1/21/03, Darrell Townsend wrote:

I'm new to writing kernel drivers, so I'm trying to get a better grasp of when I should be using a kernel extension and when I should stay out of the kernel and just use a driver interface.

You should only be in the kernel if you absolutely have to be. That usually means you provide a service that something else in the kernel needs.

For example, if I was trying to write an application that interacted with a Palm or some other handheld device that connects via USB, should I be looking into kernel extensions or using a driver interface based on the USB family?

That would be a user land driver. One of the magic words is "application", you're starting with a user land application, it can do it all without getting into the kernel. -- Barry Twycross email@hidden --- USB, it's not a Dyslexic BUS. (Thanks to TC.) _______________________________________________ usb mailing list | email@hidden Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/usb Do not post admin requests to the list. They will be ignored.

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- Re: Confusion over drivers vs. driver interfaces
  - From: Steve Ehrenfried <email@hidden>

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	>Confusion over drivers vs. driver interfaces (From: Darrell Townsend <email@hidden>)

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