topic imx53_qsb, Android, audio codec, IIM fuses in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/imx53-qsb-Android-audio-codec-IIM-fuses/m-p/336505#M45795 <HTML><HEAD></HEAD><BODY><P>The imx53_qsb (Quickstart-Ripley-B) runs Android 2.3.4 from Adeneo. I've noticed that OMXPlayer somehow uses IIM fuses kernel device "/dev/mxc_iim"</P><P>It calls open, mmap, close system calls. After these calls I see a kernel warning:</P><P>Unhandled fault: external abort on non-linefetch (0x1018) at 0x2abb2054</P><P>If I remove the IIM fuses support from kernel, all the warings "Unhandled fault" are gone</P><P>but the sound going out of Freescale SGTL5000 codec becomes really distorted.</P><P>I feel that IIM is used in some prebuilt dynamic libraries like lib_omx_player_arm11_elinux.so</P><P>But for what purpose?? Why sound becomes broken with the IIM support removed??</P></BODY></HTML> Tue, 05 Aug 2014 13:58:34 GMT warl0rd 2014-08-05T13:58:34Z imx53_qsb, Android, audio codec, IIM fuses https://community.nxp.com/t5/i-MX-Processors/imx53-qsb-Android-audio-codec-IIM-fuses/m-p/336505#M45795 <HTML><HEAD></HEAD><BODY><P>The imx53_qsb (Quickstart-Ripley-B) runs Android 2.3.4 from Adeneo. I've noticed that OMXPlayer somehow uses IIM fuses kernel device "/dev/mxc_iim"</P><P>It calls open, mmap, close system calls. After these calls I see a kernel warning:</P><P>Unhandled fault: external abort on non-linefetch (0x1018) at 0x2abb2054</P><P>If I remove the IIM fuses support from kernel, all the warings "Unhandled fault" are gone</P><P>but the sound going out of Freescale SGTL5000 codec becomes really distorted.</P><P>I feel that IIM is used in some prebuilt dynamic libraries like lib_omx_player_arm11_elinux.so</P><P>But for what purpose?? Why sound becomes broken with the IIM support removed??</P></BODY></HTML> Tue, 05 Aug 2014 13:58:34 GMT https://community.nxp.com/t5/i-MX-Processors/imx53-qsb-Android-audio-codec-IIM-fuses/m-p/336505#M45795 warl0rd 2014-08-05T13:58:34Z Re: imx53_qsb, Android, audio codec, IIM fuses https://community.nxp.com/t5/i-MX-Processors/imx53-qsb-Android-audio-codec-IIM-fuses/m-p/336506#M45796 <HTML><HEAD></HEAD><BODY><P>Deactivated user, could you please check?</P></BODY></HTML> Tue, 05 Aug 2014 17:42:09 GMT https://community.nxp.com/t5/i-MX-Processors/imx53-qsb-Android-audio-codec-IIM-fuses/m-p/336506#M45796 CarlosCasillas 2014-08-05T17:42:09Z