Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# DVB device configuration
4#
5
6config DVB_MMAP
7 bool "Enable DVB memory-mapped API (EXPERIMENTAL)"
8 depends on DVB_CORE
9 depends on VIDEO_V4L2=y || VIDEO_V4L2=DVB_CORE
10 select VIDEOBUF2_VMALLOC
11 help
12 This option enables DVB experimental memory-mapped API, which
13 reduces the number of context switches to read DVB buffers, as
14 the buffers can use mmap() syscalls.
15
16 Support for it is experimental. Use with care. If unsure,
17 say N.
18
19config DVB_NET
20 bool "DVB Network Support"
21 default (NET && INET)
22 depends on NET && INET && DVB_CORE
23 help
24 This option enables DVB Network Support which is a part of the DVB
25 standard. It is used, for example, by automatic firmware updates used
26 on Set-Top-Boxes. It can also be used to access the Internet via the
27 DVB card, if the network provider supports it.
28
29 You may want to disable the network support on embedded devices. If
30 unsure say Y.
31
32config DVB_MAX_ADAPTERS
33 int "maximum number of DVB/ATSC adapters"
34 depends on DVB_CORE
35 default 16
36 range 1 255
37 help
38 Maximum number of DVB/ATSC adapters. Increasing this number
39 increases the memory consumption of the DVB subsystem even
40 if a much lower number of DVB/ATSC adapters is present.
41 Only values in the range 4-32 are tested.
42
43 If you are unsure about this, use the default value 16
44
45config DVB_DYNAMIC_MINORS
46 bool "Dynamic DVB minor allocation"
47 depends on DVB_CORE
48 default y
49 help
50 If you say Y here, the DVB subsystem will use dynamic minor
51 allocation for any device that uses the DVB major number.
52 This means that you can have more than 4 of a single type
53 of device (like demuxes and frontends) per adapter, but udev
54 will be required to manage the device nodes.
55
56 If you are unsure about this, say N here.
57
58config DVB_DEMUX_SECTION_LOSS_LOG
59 bool "Enable DVB demux section packet loss log"
60 depends on DVB_CORE
61 help
62 Enable extra log messages meant to detect packet loss
63 inside the Kernel.
64
65 Should not be enabled on normal cases, as logs can
66 be very verbose.
67
68 If you are unsure about this, say N here.
69
70config DVB_ULE_DEBUG
71 bool "Enable DVB net ULE packet debug messages"
72 depends on DVB_CORE
73 help
74 Enable extra log messages meant to detect problems while
75 handling DVB network ULE packet loss inside the Kernel.
76
77 Should not be enabled on normal cases, as logs can
78 be very verbose.
79
80 If you are unsure about this, say N here.