module for usb pen drive

Question

I am making a module to do some basic stuff in my pen drive following the example here . its stating that the usb storage(in my case pen drive) device uses usb-storage driver . I saw in hardware info that its usb_storage(which is same as usb-storage as when i do rmmod usb -storage it states that ERROR: Module usb_storage does not exist in /proc/modules) . I have done even lsmod with and without device its not showing any module name usb-storage.

My doubt is simple how to know which module controles which device and i know it could be unloaded by rmmod (module name).

Answer 1

Assuming that your kernel actually has usb-storage support this means the module is built in to the kernel and cannot be removed.

Try rebuilding your kernel after changing the usb-storage support to be built as a module, rather than directly into the kernel.

Answer 2

There should be no problem removing the module if you are the Super user. Otherwise, change to super user then try to remove it. It can be done by sudo su command.

And for the list of modules being used, you can view the device log by dmesg and check out.