sndiod: Propagate the controls' display string to clients.

with help from edd@ and armani@

sndiod: Use a 'unsigned char *' for the pointer to the temp sock buffer

Bypass authentication and create no session for root

ok deraadt

Add API to control audio device parameters exposed by sndiod.

The API exposes controls of modern audio hardware and sndiod software
volume knobs in a uniform way. Hardware knobs are exposed through
sndiod. Multiple programs may use the controls at the same time
without the need to continuously scan the controls.

For now sndiod exposes only its own controls and the master output and
input volumes of the underlying hardware (if any), i.e. those
typically exposed by acpi volume keys.

ok deraadt

Move opt pointer from the sock to the slot struct.

spacing

remove unused var

For MIDI ports, use the same open/close logic as for audio devices:
drop clients using it when the port is closed (eg. umidi disconnected)
and try to reopen it whenever a new client connects.

Remplace aucat server by a new sndiod daemon aimed to be simpler
smaller and faster than aucat. It's a drop in replacement with the
following exceptions that don't affect the default setup:
- The sample rate and the encoding are a per-device parameters
thus -r and -e options must precede the corresponding -f option
- MIDI thru boxes are dynamically created and no -M option
is required anymore, so -M was removed.
- MIDI ports are exposed with a new ``midi/N'' name, rather
than abusing MIDI thru boxes.
with help from armani@, ok deraadt@

Bypass authentication and create no session for root

ok deraadt

Add API to control audio device parameters exposed by sndiod.

The API exposes controls of modern audio hardware and sndiod software
volume knobs in a uniform way. Hardware knobs are exposed through
sndiod. Multiple programs may use the controls at the same time
without the need to continuously scan the controls.

For now sndiod exposes only its own controls and the master output and
input volumes of the underlying hardware (if any), i.e. those
typically exposed by acpi volume keys.

ok deraadt

Move opt pointer from the sock to the slot struct.

spacing

remove unused var

For MIDI ports, use the same open/close logic as for audio devices:
drop clients using it when the port is closed (eg. umidi disconnected)
and try to reopen it whenever a new client connects.

Remplace aucat server by a new sndiod daemon aimed to be simpler
smaller and faster than aucat. It's a drop in replacement with the
following exceptions that don't affect the default setup:
- The sample rate and the encoding are a per-device parameters
thus -r and -e options must precede the corresponding -f option
- MIDI thru boxes are dynamically created and no -M option
is required anymore, so -M was removed.
- MIDI ports are exposed with a new ``midi/N'' name, rather
than abusing MIDI thru boxes.
with help from armani@, ok deraadt@

Add API to control audio device parameters exposed by sndiod.

The API exposes controls of modern audio hardware and sndiod software
volume knobs in a uniform way. Hardware knobs are exposed through
sndiod. Multiple programs may use the controls at the same time
without the need to continuously scan the controls.

For now sndiod exposes only its own controls and the master output and
input volumes of the underlying hardware (if any), i.e. those
typically exposed by acpi volume keys.

ok deraadt

Move opt pointer from the sock to the slot struct.

spacing

remove unused var

For MIDI ports, use the same open/close logic as for audio devices:
drop clients using it when the port is closed (eg. umidi disconnected)
and try to reopen it whenever a new client connects.

Remplace aucat server by a new sndiod daemon aimed to be simpler
smaller and faster than aucat. It's a drop in replacement with the
following exceptions that don't affect the default setup:
- The sample rate and the encoding are a per-device parameters
thus -r and -e options must precede the corresponding -f option
- MIDI thru boxes are dynamically created and no -M option
is required anymore, so -M was removed.
- MIDI ports are exposed with a new ``midi/N'' name, rather
than abusing MIDI thru boxes.
with help from armani@, ok deraadt@

Move opt pointer from the sock to the slot struct.

spacing

remove unused var

For MIDI ports, use the same open/close logic as for audio devices:
drop clients using it when the port is closed (eg. umidi disconnected)
and try to reopen it whenever a new client connects.

Remplace aucat server by a new sndiod daemon aimed to be simpler
smaller and faster than aucat. It's a drop in replacement with the
following exceptions that don't affect the default setup:
- The sample rate and the encoding are a per-device parameters
thus -r and -e options must precede the corresponding -f option
- MIDI thru boxes are dynamically created and no -M option
is required anymore, so -M was removed.
- MIDI ports are exposed with a new ``midi/N'' name, rather
than abusing MIDI thru boxes.
with help from armani@, ok deraadt@

spacing

remove unused var

For MIDI ports, use the same open/close logic as for audio devices:
drop clients using it when the port is closed (eg. umidi disconnected)
and try to reopen it whenever a new client connects.

Remplace aucat server by a new sndiod daemon aimed to be simpler
smaller and faster than aucat. It's a drop in replacement with the
following exceptions that don't affect the default setup:
- The sample rate and the encoding are a per-device parameters
thus -r and -e options must precede the corresponding -f option
- MIDI thru boxes are dynamically created and no -M option
is required anymore, so -M was removed.
- MIDI ports are exposed with a new ``midi/N'' name, rather
than abusing MIDI thru boxes.
with help from armani@, ok deraadt@