Hi ossdevs, the kmix patch progressed further in my absense. However, there are still plently of bugs with the implementation that need to be fixed. Those bugs are actually only a consequence of my lack of knowledge about the OSSv4 mixer API. So I've got the following questions (for now):
1) How do I find the proper maxium value of a control? The docs mention that it's possible that actually only a discrete range of values between ext.minvalue and ext.minvalue are supported by the underlying device (with automatic rounding etc.). Now I've got an HD audio (ALC883) here with the control "code1.jack.int-speaker1" of type MIXT_STEREOSLIDER [ + MIXF_CENITBEL ], with minvalue 0 and maxvalue 399. However, the maximum value (set with ossxmix before) reported when reading from the mixer is 299, which is about 75% of maximum. I've browsed the source of ossxmix, but I don't really understand how it does detect the actually supported maximum. Currently the maxvalue-minvalue range is used by kmix and applied to the respective slider. So with this approach 100% volume in ossxmix for this control matches 75% in kmix, which is obviously wrong. I wonder whether a better a approach for sliders would be to allow 0-100 only (or 0-1000 for finer granularity) and write [ ext.minvalue + (sliderValue/100) * (ext.maxvalue - ext.minvalue) ] to the mixer. 2) How do I need to handle MIXT_HEXVALUE and MIXT_VALUE? Best regards apriori _______________________________________________ oss-devel mailing list oss-devel@mailman.opensound.com http://mailman.opensound.com/mailman/listinfo/oss-devel
