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laforge, 02/19/2016 10:48 PM
add some information on the input drivers
PageOutline = libosmo-abis =
This is a library containing common/shared code regarding the A-bis interface between BTS and BSC
It implements drivers for mISDN and DAHDI based E1 cards, as well as some A-bis/IP dialects
The library source code can be found in
{{{
git clone git://git.osmocom.org/libosmo-abis.git
}}}
There are currently the following input drivers available:
=== misdn ===
This input driver supports the mISDN code as it is present in mainline linux-2.6 kernels.
It uses the in-kernel LAPD implementation, and is thus bound to some restrictions. Specifically,
you can only have one signaling timeslot (D-channel) in every E1 line, which may cause problems
with multi-BTS or multi-TRX setups (particularly in the case of Nokia A-bis)
You have to configure which E1 timeslot is to be used for signaling by module parameters, e.g.
{{{
modprobe hfcmulti dslot=1
}}}
will configure TS1 as signaling.
=== misdn_lapd ===
This input driver supports the mISDN code as it is present in mainline linux-2.6 kernels.
However, unlike the "misdn" driver, it runs LAPD in userspace, as part of libosmo-abis.
In order to be able to use it, you will need to make sure the mISDN kernel driver does not
configure any timeslot to signaling, e.g. bh
{{{
modprobe hfcmulti dslot=-1
}}}
(notice the "-" in front of 1 to indicate "no signaling timeslot").
=== dahdi ===
This driver supports the DAHDI (formerly known as zaptel) out-of-tree drivers for e.g.
the various Digium and Digium compatible E1/T1/J1 cards.
=== ipa ===
This implements the ip.access A-bis/IP multiplex protocol.
=== hsl ===
Experimental driver for support of the [HSL_Femto]
Updated by laforge about 8 years ago · 2 revisions