* Using AVRCP with current BlueZ @ 2007-11-22 16:26 Csillag Kristóf 2007-11-22 17:13 ` [Bluez-users] " Johan Hedberg 0 siblings, 1 reply; 5+ messages in thread From: Csillag Kristóf @ 2007-11-22 16:26 UTC (permalink / raw) To: bluez-users; +Cc: marcel Hi there! The wiki page at http://wiki.bluez.org/wiki/HOWTO/AudioDevices says that I no longer not need bluetooth-alsa, plugz, btsco or the like for audio to work - they are now obsolete. My question is, how can I use AVRCP now? bluetooth-alsa used to contain some support for it, but now I guess it's gone. Browsing the source code of bluez-utils, I see some dbus interface, but I can not find any example demonstrating how to use this. Could you please point me to the right documentation (if it exists)? Thank you for your help: Kristof Csillag ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Bluez-users] Using AVRCP with current BlueZ 2007-11-22 16:26 Using AVRCP with current BlueZ Csillag Kristóf @ 2007-11-22 17:13 ` Johan Hedberg 2007-11-23 2:36 ` \x11 2007-11-23 12:00 ` Csillag Kristóf 0 siblings, 2 replies; 5+ messages in thread From: Johan Hedberg @ 2007-11-22 17:13 UTC (permalink / raw) To: BlueZ users Hi Kristof, On Nov 22, 2007 6:26 PM, Csillag Krist=F3f <csillag.kristof@gmail.com> wrot= e: > My question is, how can I use AVRCP now? bluetooth-alsa used to contain > some support for it, but now I guess it's gone. Browsing the source > code of bluez-utils, I see some dbus interface, but I can not find > any example demonstrating how to use this. > > Could you please point me to the right documentation (if it exists)? I don't think there is any proper documentation yet. bluez-utils-3.22 has some preliminary AVRCP support but by default it's disabled. You need to add a line "Enable=3DControl" to the General section in /etc/bluetooth/audio.conf to enable it. Currently no D-Bus signals or or methods are supported. Instead, the audio service uses the kernel uinput interface (you need to have the uinput module loaded) to inject keypress events to the kernel input subsystem. You can see what kind of AVRCP->keycode mappings are used by looking in the audio/control.c file from bluez-utils. Johan ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Bluez-users] Using AVRCP with current BlueZ 2007-11-22 17:13 ` [Bluez-users] " Johan Hedberg @ 2007-11-23 2:36 ` \x11 2007-11-23 12:00 ` Csillag Kristóf 1 sibling, 0 replies; 5+ messages in thread From: \x11 @ 2007-11-23 2:36 UTC (permalink / raw) To: BlueZ users Thanks,Johan. im also wondering how i can do avrcp and now here's the answer. semiyd > Date: Thu, 22 Nov 2007 19:13:55 +0200 > From: johan.hedberg@gmail.com > To: bluez-users@lists.sourceforge.net > Subject: Re: [Bluez-users] Using AVRCP with current BlueZ > > Hi Kristof, > > On Nov 22, 2007 6:26 PM, Csillag Krist=F3f wrote: >> My question is, how can I use AVRCP now? bluetooth-alsa used to contain >> some support for it, but now I guess it's gone. Browsing the source >> code of bluez-utils, I see some dbus interface, but I can not find >> any example demonstrating how to use this. >> >> Could you please point me to the right documentation (if it exists)? > > I don't think there is any proper documentation yet. bluez-utils-3.22 > has some preliminary AVRCP support but by default it's disabled. You > need to add a line "Enable=3DControl" to the General section in > /etc/bluetooth/audio.conf to enable it. Currently no D-Bus signals or > or methods are supported. Instead, the audio service uses the kernel > uinput interface (you need to have the uinput module loaded) to inject > keypress events to the kernel input subsystem. You can see what kind > of AVRCP->keycode mappings are used by looking in the audio/control.c > file from bluez-utils. > > Johan > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Bluez-users mailing list > Bluez-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-users _________________________________________________________________ Connect to the next generation of MSN Messenger=A0 http://imagine-msn.com/messenger/launch80/default.aspx?locale=3Den-us&sourc= e=3Dwlmailtagline ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Bluez-users] Using AVRCP with current BlueZ 2007-11-22 17:13 ` [Bluez-users] " Johan Hedberg 2007-11-23 2:36 ` \x11 @ 2007-11-23 12:00 ` Csillag Kristóf 2007-11-23 12:32 ` Johan Hedberg 1 sibling, 1 reply; 5+ messages in thread From: Csillag Kristóf @ 2007-11-23 12:00 UTC (permalink / raw) To: BlueZ users [-- Attachment #1: Type: text/plain, Size: 1329 bytes --] Hi Johan, 2007/11/22, Johan Hedberg <johan.hedberg@gmail.com>: > I don't think there is any proper documentation yet. bluez-utils-3.22 > has some preliminary AVRCP support but by default it's disabled. You > need to add a line "Enable=Control" to the General section in > /etc/bluetooth/audio.conf to enable it. Currently no D-Bus signals or > or methods are supported. Instead, the audio service uses the kernel > uinput interface (you need to have the uinput module loaded) to inject > keypress events to the kernel input subsystem. You can see what kind > of AVRCP->keycode mappings are used by looking in the audio/control.c > file from bluez-utils. Thanks, now it works great! One more question: what was the reason to use KEY_NEXT and KEY_PREVIOUS, instead of KEY_NEXTSONG and KEY_PREVIOUSSONG? The latter are below-256 keycodes (like KEY_PLAYPAUSE, which is used by BlueZ for pause) handled nicely by all applications (like keytouch), where the former, which are currently used, are extended codes, mostly unsupported in user-space. As far as I am interested, I changed the codes in my local BlueZ installation so that I do not have to change keytouch. Now it works nice with keytouch and hence audacious. Thank you: Kristóf ps. Here is a patch, if anybody is interested. [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #2: keycode_change.patch --] [-- Type: text/x-diff; name=keycode_change.patch, Size: 1804 bytes --] --- control.c~ 2007-10-26 01:09:15.000000000 +0200 +++ control.c 2007-11-23 12:34:52.000000000 +0100 @@ -447,8 +447,8 @@ ioctl(fd, UI_SET_KEYBIT, KEY_PLAYPAUSE); ioctl(fd, UI_SET_KEYBIT, KEY_STOP); - ioctl(fd, UI_SET_KEYBIT, KEY_NEXT); - ioctl(fd, UI_SET_KEYBIT, KEY_PREVIOUS); + ioctl(fd, UI_SET_KEYBIT, KEY_NEXTSONG); + ioctl(fd, UI_SET_KEYBIT, KEY_PREVIOUSSONG); ioctl(fd, UI_SET_KEYBIT, KEY_REWIND); ioctl(fd, UI_SET_KEYBIT, KEY_FORWARD); @@ -560,11 +560,11 @@ break; case NEXT_OP: debug("AVRCP: NEXT %s", status); - send_key(session->uinput, KEY_NEXT, pressed); + send_key(session->uinput, KEY_NEXTSONG, pressed); break; case PREV_OP: debug("AVRCP: PREV %s", status); - send_key(session->uinput, KEY_PREVIOUS, pressed); + send_key(session->uinput, KEY_PREVIOUSSONG, pressed); break; case REWIND_OP: debug("AVRCP: REWIND %s", status); --- bluez-utils-3.22/audio/control.c~ 2007-10-26 01:09:15.000000000 +0200 +++ bluez-utils-3.22/audio/control.c 2007-11-23 12:34:52.000000000 +0100 @@ -447,8 +447,8 @@ ioctl(fd, UI_SET_KEYBIT, KEY_PLAYPAUSE); ioctl(fd, UI_SET_KEYBIT, KEY_STOP); - ioctl(fd, UI_SET_KEYBIT, KEY_NEXT); - ioctl(fd, UI_SET_KEYBIT, KEY_PREVIOUS); + ioctl(fd, UI_SET_KEYBIT, KEY_NEXTSONG); + ioctl(fd, UI_SET_KEYBIT, KEY_PREVIOUSSONG); ioctl(fd, UI_SET_KEYBIT, KEY_REWIND); ioctl(fd, UI_SET_KEYBIT, KEY_FORWARD); @@ -560,11 +560,11 @@ break; case NEXT_OP: debug("AVRCP: NEXT %s", status); - send_key(session->uinput, KEY_NEXT, pressed); + send_key(session->uinput, KEY_NEXTSONG, pressed); break; case PREV_OP: debug("AVRCP: PREV %s", status); - send_key(session->uinput, KEY_PREVIOUS, pressed); + send_key(session->uinput, KEY_PREVIOUSSONG, pressed); break; case REWIND_OP: debug("AVRCP: REWIND %s", status); [-- Attachment #3: Type: text/plain, Size: 228 bytes --] ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ [-- Attachment #4: Type: text/plain, Size: 164 bytes --] _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Bluez-users] Using AVRCP with current BlueZ 2007-11-23 12:00 ` Csillag Kristóf @ 2007-11-23 12:32 ` Johan Hedberg 0 siblings, 0 replies; 5+ messages in thread From: Johan Hedberg @ 2007-11-23 12:32 UTC (permalink / raw) To: BlueZ users On Nov 23, 2007, at 14:00, Csillag Krist=F3f wrote: > One more question: what was the reason to use > > KEY_NEXT and KEY_PREVIOUS, instead of > KEY_NEXTSONG and KEY_PREVIOUSSONG? No special reason, except that the names of the key codes matched more = precisely the AVRCP spec. > The latter are below-256 keycodes (like KEY_PLAYPAUSE, > which is used by BlueZ for pause) handled nicely by > all applications (like keytouch), where the former, which > are currently used, are extended codes, mostly unsupported > in user-space. If this improves interoperability with existing applications then it's = probably a good idea to apply your patch. I'll commit it to CVS later = today unless somebody has a good reason why it shouldn't be done. Johan ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2007-11-23 12:32 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2007-11-22 16:26 Using AVRCP with current BlueZ Csillag Kristóf 2007-11-22 17:13 ` [Bluez-users] " Johan Hedberg 2007-11-23 2:36 ` \x11 2007-11-23 12:00 ` Csillag Kristóf 2007-11-23 12:32 ` Johan Hedberg
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