On Thursday 09 June 2011 16:40:15 onlyfever wrote: > Hello, > I want to power down Voice/Bluetooth sidetone PGA of TWL5030. > I set the VSTPGA Register/BTSTPGA Register to 0x00,but it seems that > the Voice/Bluetooth sidetone PGA still work, > and even set VSTPGA/BTSTPGA to Mute,there still have sidetone come out. > > How can I power down Voice/Bluetooth sidetone PGA? > I don't need sidetone. Are you sure, that the sidetone is added by the VSTPGA/BTSTPGA? Could you check, if you accidentally left either the analog loopbacks enabled (or digital loopbacks)? Check for these: Right1/2 Analog Loopback, Left1/2 Analog Loopback, Voice Analog Loopback, Left/Right/Voice Digital Loopback Could you describe your scenario (uplink, downlink routing, etc)? -- Péter -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html