Try to send the commands,

opkg install kernel-module-dvb-usb-rtl2832u
or
opkg install v4l-dvb-module-dvb-usb-rtl2832u

but I don't think it's supported yet.

Admin

Code:
root@dm800se:/var/volatile/tmp# opkg install v4l-dvb-module-dvb-usb-rtl2832u
Unknown package 'v4l-dvb-module-dvb-usb-rtl2832u'.
Collected errors:
 * opkg_install_cmd: Cannot install package v4l-dvb-module-dvb-usb-rtl2832u.
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