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https://git.kernel.org/pub/scm/bluetooth/bluez.git
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a282fff97d
If the remote device support version 1.4 or latter send register command
for VolumeChanged event:
< AVCTP: Command : pt 0x00 transaction 0 pid 0x110e
AV/C: Notify: address 0x48 opcode 0x00
Subunit: Panel
Opcode: Vendor Dependent
Company ID: 0x001958
AVRCP: RegisterNotification: pt Single len 0x0005
EventID: 0x0d (EVENT_VOLUME_CHANGED)
Interval: 0x00000000 (0 seconds)
> AVCTP: Response : pt 0x00 transaction 0 pid 0x110e
AV/C: Interim: address 0x48 opcode 0x00
Subunit: Panel
Opcode: Vendor Dependent
Company ID: 0x001958
AVRCP: RegisterNotification: pt Single len 0x0002
EventID: 0x0d (EVENT_VOLUME_CHANGED)
Volume: 100.00% (127/127)
42 lines
1.6 KiB
C
42 lines
1.6 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2006-2007 Nokia Corporation
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* Copyright (C) 2004-2009 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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struct media_transport;
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struct media_transport *media_transport_create(DBusConnection *conn,
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struct media_endpoint *endpoint,
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struct audio_device *device,
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uint8_t *configuration,
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size_t size);
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void media_transport_destroy(struct media_transport *transport);
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const char *media_transport_get_path(struct media_transport *transport);
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struct audio_device *media_transport_get_dev(struct media_transport *transport);
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void media_transport_update_delay(struct media_transport *transport,
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uint16_t delay);
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void media_transport_update_volume(struct media_transport *transport,
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uint8_t volume);
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void transport_get_properties(struct media_transport *transport,
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DBusMessageIter *iter);
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