1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "CAPI 2.0 subsystem"
5 This provides CAPI (the Common ISDN Application Programming
6 Interface) Version 2.0, a standard making it easy for programs to
7 access ISDN hardware in a device independent way. (For details see
8 <http://www.capi.org/>.) CAPI supports making and accepting voice
9 and data connections, controlling call options and protocols,
10 as well as ISDN supplementary services like call forwarding or
11 three-party conferences (if supported by the specific hardware
14 This subsystem requires a hardware specific driver.
15 See CONFIG_BT_CMTP for the last remaining regular driver
16 in the kernel that uses the CAPI subsystem.
21 bool "CAPI trace support"
24 If you say Y here, the kernelcapi driver can make verbose traces
25 of CAPI messages. This feature can be enabled/disabled via IOCTL for
26 every controller (default disabled).
27 This will increase the size of the kernelcapi module by 20 KB.
30 config ISDN_CAPI_CAPI20
31 tristate "CAPI2.0 /dev/capi20 support"
33 This option will provide the CAPI 2.0 interface to userspace
34 applications via /dev/capi20. Applications should use the
35 standardized libcapi20 to access this functionality. You should say
38 config ISDN_CAPI_MIDDLEWARE
39 bool "CAPI2.0 Middleware support"
40 depends on ISDN_CAPI_CAPI20 && TTY
42 This option will enhance the capabilities of the /dev/capi20
43 interface. It will provide a means of moving a data connection,
44 established via the usual /dev/capi20 interface to a special tty
45 device. If you want to use pppd with pppdcapiplugin to dial up to
48 config ISDN_CAPI_CAPIDRV_VERBOSE
49 bool "Verbose reason code reporting"
50 depends on ISDN_CAPI_CAPIDRV
52 If you say Y here, the capidrv interface will give verbose reasons
53 for disconnecting. This will increase the size of the kernel by 7 KB.