How many ways are there to access a usb device?

Hi,

for this conversation i am taking a simple usb device( surely this is
not  a block device, a kind of char device)

step 1
---------
i can create a kernel module with specifically allocated major and
minor number. so through device file i can access the device driver.
This is surely a char device driver.

step 2
----------
i can create a kernel module without specifically allocated major and
minor number.
But i will create only attribute files in /sys. so that i can access the device.
 still, is it a char device driver.?

whatever i stated above is correct?
am i missing anything?

please correct me if i am wrong.


Ashok

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