Hi, On Feb 13 2016 03:57, Martin Koegler wrote: > From: Martin Koegler <martin.koegler@xxxxxxxxx> > > Signed-off-by: Martin Koegler <martin.koegler@xxxxxxxxx> This is related to your below patch. http://mailman.alsa-project.org/pipermail/alsa-devel/2016-February/104229.html Would you please re-post this patch with your comments again so that the other developers can get to know your intension? > --- > include/seq.h | 1 + > include/sound/asequencer.h | 5 +++-- > src/seq/seq.c | 11 +++++++++++ > src/seq/seq_hw.c | 8 +++++++- > 4 files changed, 22 insertions(+), 3 deletions(-) > > diff --git a/include/seq.h b/include/seq.h > index 9576822..77996e5 100644 > --- a/include/seq.h > +++ b/include/seq.h > @@ -143,6 +143,7 @@ snd_seq_client_type_t snd_seq_client_info_get_type(const snd_seq_client_info_t * > const char *snd_seq_client_info_get_name(snd_seq_client_info_t *info); > int snd_seq_client_info_get_broadcast_filter(const snd_seq_client_info_t *info); > int snd_seq_client_info_get_error_bounce(const snd_seq_client_info_t *info); > +int snd_seq_client_info_get_owner(const snd_seq_client_info_t *info); > const unsigned char *snd_seq_client_info_get_event_filter(const snd_seq_client_info_t *info); > int snd_seq_client_info_get_num_ports(const snd_seq_client_info_t *info); > int snd_seq_client_info_get_event_lost(const snd_seq_client_info_t *info); > diff --git a/include/sound/asequencer.h b/include/sound/asequencer.h > index 09c8a00..7ebf7fd 100644 > --- a/include/sound/asequencer.h > +++ b/include/sound/asequencer.h > @@ -24,7 +24,7 @@ > > > /** version of the sequencer */ > -#define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION (1, 0, 1) > +#define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION (1, 0, 2) > > /** > * definition of sequencer event types > @@ -356,7 +356,8 @@ struct snd_seq_client_info { > unsigned char event_filter[32]; /* event filter bitmap */ > int num_ports; /* RO: number of ports */ > int event_lost; /* number of lost events */ > - char reserved[64]; /* for future use */ > + int owner; /* RO: card number[kernel] / PID[user] */ > + char reserved[64 - sizeof(int)]; /* for future use */ > }; > > > diff --git a/src/seq/seq.c b/src/seq/seq.c > index 620ca3f..2505293 100644 > --- a/src/seq/seq.c > +++ b/src/seq/seq.c > @@ -1522,6 +1522,17 @@ int snd_seq_client_info_get_error_bounce(const snd_seq_client_info_t *info) > } > > /** > + * \brief Get the sound card number (kernel) or owning PID > + * \param info client_info container > + * \return card number/PID/-1 if value is not available. > + */ > +int snd_seq_client_info_get_owner(const snd_seq_client_info_t *info) > +{ > + assert(info); > + return info->owner; > +} > + > +/** > * \brief (DEPRECATED) Get the event filter bitmap of a client_info container > * \param info client_info container > * \return NULL if no event filter, or pointer to event filter bitmap > diff --git a/src/seq/seq_hw.c b/src/seq/seq_hw.c > index d033367..a4c083a 100644 > --- a/src/seq/seq_hw.c > +++ b/src/seq/seq_hw.c > @@ -32,10 +32,11 @@ const char *_snd_module_seq_hw = ""; > #ifndef DOC_HIDDEN > #define SNDRV_FILE_SEQ ALSA_DEVICE_DIRECTORY "seq" > #define SNDRV_FILE_ALOADSEQ ALOAD_DEVICE_DIRECTORY "aloadSEQ" > -#define SNDRV_SEQ_VERSION_MAX SNDRV_PROTOCOL_VERSION(1, 0, 1) > +#define SNDRV_SEQ_VERSION_MAX SNDRV_PROTOCOL_VERSION(1, 0, 2) > > typedef struct { > int fd; > + int micro_version; > } snd_seq_hw_t; > #endif /* DOC_HIDDEN */ > > @@ -100,6 +101,8 @@ static int snd_seq_hw_get_client_info(snd_seq_t *seq, snd_seq_client_info_t * in > /*SYSERR("SNDRV_SEQ_IOCTL_GET_CLIENT_INFO failed");*/ > return -errno; > } > + if (hw->micro_version < SNDRV_PROTOCOL_MICRO(SNDRV_SEQ_VERSION_MAX)) > + info->owner = -1; > return 0; > } > > @@ -368,6 +371,8 @@ static int snd_seq_hw_query_next_client(snd_seq_t *seq, snd_seq_client_info_t *i > /*SYSERR("SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT failed");*/ > return -errno; > } > + if (hw->micro_version < SNDRV_PROTOCOL_MICRO(SNDRV_SEQ_VERSION_MAX)) > + info->owner = -1; > return 0; > } > > @@ -480,6 +485,7 @@ int snd_seq_hw_open(snd_seq_t **handle, const char *name, int streams, int mode) > return -ENOMEM; > } > hw->fd = fd; > + hw->micro_version = SNDRV_PROTOCOL_MICRO(ver); > if (streams & SND_SEQ_OPEN_OUTPUT) { > seq->obuf = (char *) malloc(seq->obufsize = SND_SEQ_OBUF_SIZE); > if (!seq->obuf) { > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
