Paul Davis wrote: > > i'm looking at the control API, and i can't see how to define a > control that requires 2 values in order to read or write the control. > > there seems to be an assumption that a control element maps 1:1 onto a > hardware entity. i want (need) to create a control element that is > more flexible than that. the basic idea is: > > control->value.integer.value[0] = source; > control->value.integer.value[1] = destination; > > snd_ctl_read (...) > > or: > > control->value.integer.value[0] = source; > control->value.integer.value[1] = destination; > control->value.integer.value[3] = gain; > > snd_ctl_write (...) > > am i missing something really simple? >
I suggest you to use the field index of struct sndrv_ctl_elem_id (one byte per dimension). id.index = (source << 8) | destination; -- Abramo Bagnara mailto:[EMAIL PROTECTED] Opera Unica Phone: +39.546.656023 Via Emilia Interna, 140 48014 Castel Bolognese (RA) - Italy ALSA project http://www.alsa-project.org It sounds good! _______________________________________________________________ Have big pipes? SourceForge.net is looking for download mirrors. We supply the hardware. You get the recognition. Email Us: [EMAIL PROTECTED] _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
