[drmadhupk]

I use cc on my android device to connect to calibre as content server/wireless device to transfer books and metadata. But when I connect my device with usb cable to pc running calibre, calibre starts scanning my device in its entirety. it doesn't allow anything to be done on calibre till it finishes its "job". it never finishes scanning the device. I have waited for nearly 4 hours, but it was still doing its job.
I found many old threads here about the issue. I opted to ignore my device under preferences> plugins> device drivers> mtp plugin. now calibre ignores my device and doesn't scan through it. good for me.
But now I am left with only wireless/content server option to connect to my device.
My doubts are,
1. what is calibre looking for on the device?
2. if it was for books or metadata file, I know where they are and I can guide calibre to look for them only in the folders specified by me.
3. why should it scan through whole of the device? doesn't it know where to look for?
4. it keeps doing its "job" endlessly. why can't calibre do it any faster?
5. how do I add book to my device if I don't have access to wifi? as I have asked calibre to ignore my device due to endless scanning job running in the background and not allowing me to access device through cable.
6. IS IT SAFE TO ALLOW CALIBRE LOOK IN TO EVERY NOOK AND CORNER OF MY DEVICE?