Comment 11 for bug 894448

Are you sure this is the storage mode which is set on the device? You should be able to access the storage from Linux as well ...

Maybe I was too short in my explanation. This phone has probably more than two different modes; so far, I assume there are three:

1. install mode: shows the pseudo CDROM and probably other storage drives
2. ADB/modem mode: activated by the Windows driver or by usb_modeswitch from mode 1
3. storage mode: shows only the phone storage drive(s)

These modes may be detectable either by a changed USB ID or by a changed internal setup (attributes, interfaces). It's quite possible that mode 1 and 2 appear as one setting on the device ("modem", "serial" or the like) and that only a mode switch will make it reach mode 2.

Of course, I may be totally wrong. To verify these assumptions, it will be necessary to check out the configuration of the modes in detail. This can be done with "sudo lsusb -v -d 19d2:<product_id>" for all possible settings, including the one that is reached when mode switching is activated again.

BTW, you don't need to edit the rules file to enable/disable the mode switch. Just edit /etc/usb_modeswitch.conf and set the DisableSwitching parameter.