1*059b1c5bSMauro Carvalho Chehab.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 254f38fcaSMauro Carvalho Chehab 354f38fcaSMauro Carvalho Chehab.. _query-dvb-frontend-info: 454f38fcaSMauro Carvalho Chehab 554f38fcaSMauro Carvalho Chehab***************************** 654f38fcaSMauro Carvalho ChehabQuerying frontend information 754f38fcaSMauro Carvalho Chehab***************************** 854f38fcaSMauro Carvalho Chehab 954f38fcaSMauro Carvalho ChehabUsually, the first thing to do when the frontend is opened is to check 1054f38fcaSMauro Carvalho Chehabthe frontend capabilities. This is done using 1154f38fcaSMauro Carvalho Chehab:ref:`FE_GET_INFO`. This ioctl will enumerate the 1254f38fcaSMauro Carvalho ChehabDigital TV API version and other characteristics about the frontend, and can 1354f38fcaSMauro Carvalho Chehabbe opened either in read only or read/write mode. 14