1 .. -*- coding: utf-8; mode: rst -*-
12 FE_GET_INFO - Query Digital TV frontend capabilities and returns information
13 about the - front-end. This call only requires read-only access to the device.
19 .. c:function:: int ioctl( int fd, FE_GET_INFO, struct dvb_frontend_info *argp )
27 File descriptor returned by :ref:`open() <frontend_f_open>`.
30 pointer to struct struct
31 :c:type:`dvb_frontend_info`
37 All Digital TV frontend devices support the :ref:`FE_GET_INFO` ioctl. It is
38 used to identify kernel devices compatible with this specification and to
39 obtain information about driver and hardware capabilities. The ioctl
40 takes a pointer to dvb_frontend_info which is filled by the driver.
41 When the driver is not compatible with this specification the ioctl
48 Capabilities describe what a frontend can do. Some capabilities are
49 supported only on some specific frontend types.
51 The frontend capabilities are described at :c:type:`fe_caps`.
57 On success 0 is returned.
59 On error -1 is returned, and the ``errno`` variable is set
62 Generic error codes are described at the
63 :ref:`Generic Error Codes <gen-errors>` chapter.