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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/man/kmscon.xml | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/docs/man/kmscon.xml b/docs/man/kmscon.xml index 3d8a639..8f058ff 100644 --- a/docs/man/kmscon.xml +++ b/docs/man/kmscon.xml @@ -191,15 +191,6 @@ (default: on)</para> </listitem> </varlistentry> - - <varlistentry> - <term><option>--cdev-session</option></term> - <listitem> - <para>Start cdev-VT-emulation session after setup is done. This is - limited to - <option>--listen</option> mode. (default: off)</para> - </listitem> - </varlistentry> </variablelist> <para>Terminal Options:</para> @@ -607,12 +598,6 @@ <para>Terminal sessions provide a terminal emulator. They are the main session type and provide all the terminal-emulation functionality.</para> - - <para>CDev sessions provide a way to hook-up external applications as kmscon - sessions. They provide fake virtual terminals on seats that don't have - them so you can switch between multiple graphics applications/servers - without needing VTs. See <emphasis>Virtual Terminals</emphasis> - below.</para> </refsect1> <refsect1> @@ -629,31 +614,6 @@ This is done via VT APIs on seat0. But note that if the kernel is compiled without CONFIG_VT (which controls whether VTs are available), then even seat0 does not have VTs.</para> - - <para>On seats without VTs we need a replacement API. However, a new - API would require modifying every application that uses the VT API to - also support the new replacement if you want to run it on those seats. - Therefore, kmscon provides a backwards-compatible API. It uses the - linux CUSE API to create VTs for all seats that have no VTs. You need - to pass <option>--cdev-session</option> to kmscon to enable this. - kmscon will then create one cdev (<emphasis>c</emphasis>haracter - <emphasis>dev</emphasis>ice) for each seat and calls it - <filename>/dev/ttyF{seatname}</filename> ('F' for 'fake'). This - character device provides the same API as a VT so your X-Server (or - even kmscon in default-mode) can use it instead of a real VT.</para> - - <para>In contrast to real VTs, each application that opens this fake VT will - get a different VT assigned. So you can use multiple X-Servers all - opening <filename>/dev/ttyF{seatname}</filename> and they will each - show up as different kmscon session. But note that not all TTY ioctls - are available on fake VTs. kmscon only emulates the API that is - currently used by most VT users. If you want to run an application - that needs more functionality, please open a bug-report.</para> - - <para>Switching VTs is done by signaling the active process to go asleep and - signaling the new VT to wake up. If kmscon emulates VTs, it needs to - be able to send these signals to the processes running on fake VTs. In - most situations this means kmscon must have root privileges.</para> </refsect1> <refsect1> |