On Tue, Jun 15, 2010 at 04:42:32PM +0300, Peter Ujfalusi wrote: > Hi, > > On Tuesday 15 June 2010 08:11:10 ext Stuart Longland wrote: > > Okay, I've had a close inspection of how the SOC_DOUBLE_R_SX_TLV widgets > > are implemented. I couldn't find where in the git trees the control had > > been added, I wound up applying this patch myself in my tree... it > > apparently got applied in the official trees, but I cannot find it. > > I'm not really sure what the SOC_DOUBLE_R_SX_TLV is for... > But would a simple SOC_DOUBLE_R_TLV enough for the aic3204 codec? > I have not looked at the datasheet (if it is available), but I'll try to find > it. http://focus.ti.com/docs/prod/folders/print/tlv320aic3204.html has the datasheet. As I mentioned; the bitfields are signed integers, 6 bits wide in the case of the example given, there are some that are 7 bits. In the examples that I gave (driver gain settings), they have a range of -6dB to 29dB... which corresponds to bitfield values of 0x3a (for -6dB) and 0x1d (for 29dB). I did try using the regular TLV macro, and found that the volume "wrapped" around in a very undesirable fashion. SOC_DOUBLE_R_SX_TLV was the suggestion made at the time[1]. The way it is now, it works okay ... if you leave the mute untouched. -- Stuart Longland (aka Redhatter, VK4MSL) .'''. Gentoo Linux/MIPS Cobalt and Docs Developer '.'` : . . . . . . . . . . . . . . . . . . . . . . .'.' http://dev.gentoo.org/~redhatter :.' I haven't lost my mind... ...it's backed up on a tape somewhere. 1. http://article.gmane.org/gmane.linux.alsa.devel/73640 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
