r8192ce is a PCI driver for RTL8192CE/RTL8188CE devices, and r8192cu is a USB driver for RTL8192CU/RTL8188CU devices. Both of them are based on mac80211 and supported by linux-wireless.
r8192e_pci is a PCI-E driver for RTL8192E devices. r8712u and r8192u_usb are USB drivers for RTL8712U(RTL8192SU) and RTL8192SU devices, respectively. They are included in the staging tree at linux-2.6/drivers/staging and they are NOT supported by linux-wireless developers or mailing list.
Instead ask for support in http://driverdev.linuxdriverproject.org/mailman/listinfo/devel or to the maintainers, Greg Kroah-Hartman < firstname.lastname@example.org > Larry Finger <Larry.Finger@lwfinger.net>.
The r8192s_usb driver has been dropped in favor of r8712u, as this http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef.