Date: Thu, 21 May 2015 07:48:07 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r283192 - stable/10/sys/dev/sound/pcm Message-ID: <201505210748.t4L7m7eQ026495@svn.freebsd.org>
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Author: hselasky Date: Thu May 21 07:48:06 2015 New Revision: 283192 URL: https://svnweb.freebsd.org/changeset/base/283192 Log: MFC r282017: Allow DSP basename cloning to be disabled or enabled at boot and runtime. This is useful when implementing OSS sound stacks in userspace via libcuse for example. Modified: stable/10/sys/dev/sound/pcm/dsp.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/sound/pcm/dsp.c ============================================================================== --- stable/10/sys/dev/sound/pcm/dsp.c Thu May 21 07:46:01 2015 (r283191) +++ stable/10/sys/dev/sound/pcm/dsp.c Thu May 21 07:48:06 2015 (r283192) @@ -48,6 +48,12 @@ SYSCTL_INT(_hw_snd, OID_AUTO, compat_lin &dsp_mmap_allow_prot_exec, 0, "linux mmap compatibility (-1=force disable 0=auto 1=force enable)"); +static int dsp_basename_clone = 1; +SYSCTL_INT(_hw_snd, OID_AUTO, basename_clone, CTLFLAG_RWTUN, + &dsp_basename_clone, 0, + "DSP basename cloning (0: Disable; 1: Enabled)"); +TUNABLE_INT("hw.snd.basename_clone", &dsp_basename_clone); + struct dsp_cdevinfo { struct pcm_channel *rdch, *wrch; struct pcm_channel *volch; @@ -2359,9 +2365,10 @@ dsp_clone(void *arg, devname = devcmp; devhw = dsp_cdevs[i].hw; devcmax = dsp_cdevs[i].max - 1; - if (strcmp(name, devcmp) == 0) - unit = snd_unit; - else if (dsp_stdclone(name, devcmp, devsep, + if (strcmp(name, devcmp) == 0) { + if (dsp_basename_clone != 0) + unit = snd_unit; + } else if (dsp_stdclone(name, devcmp, devsep, dsp_cdevs[i].use_sep, &unit, &cunit) != 0) { unit = -1; cunit = -1;
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