char driver or miscellaneous driver

Hello,
I'm writing a driver for a scanner interface card.
I'm not sure which class of driver is appropriate for this, character driver or miscellaneous driver.

It would be helpful, if I could get to know what are the difference between them and when to use what?

At the moment, I'm proceding with character driver model and I don't find any problem as such.

Hoping to get to know the differences between character and miscellaneous drivers.

Have a nice time.
Warm Regards
Arun

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