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diff --git a/sys/dev/sound/unit.c b/sys/dev/sound/unit.c
--- a/sys/dev/sound/unit.c
+++ b/sys/dev/sound/unit.c
@@ -44,24 +44,17 @@
*
* eg: dsp0.p1 - u=0, d=p, c=1
* dsp1.vp0 - u=1, d=vp, c=0
- * dsp0.10 - u=0, d=clone, c=allocated clone (see further explanation)
*
- * Maximum unit of soundcards can be tuned through "hw.snd.maxunit", which
- * is between SND_UNIT_UMIN (16) and SND_UNIT_UMAX (2048). By design,
- * maximum allowable allocated channel is 256, with exception for clone
- * devices which doesn't have any notion of channel numbering. The use of
- * channel numbering in a clone device is simply to provide uniqueness among
- * allocated clones. This also means that the maximum allowable clonable
- * device is largely dependant and dynamically tuned depending on
- * hw.snd.maxunit.
+ * Maximum unit of soundcards can be tuned through "hw.snd.maxunit", which is
+ * between SND_UNIT_UMIN (16) and SND_UNIT_UMAX (2048). By design, the maximum
+ * allowable allocated channel is 256.
*/
/* Default width */
static int snd_u_shift = 9; /* 0 - 0x1ff : 512 distinct soundcards */
static int snd_d_shift = 5; /* 0 - 0x1f : 32 distinct device types */
static int snd_c_shift = 10; /* 0 - 0x3ff : 1024 distinct channels
- (256 limit "by design",
- except for clone devices) */
+ (256 limit "by design") */
static int snd_unit_initialized = 0;
@@ -184,10 +177,7 @@
snd_u_shift++)
;
- /*
- * Make room for channels/clones allocation unit
- * to fit within 24bit MAXMINOR limit.
- */
+ /* Make room for channels to fit within 24bit MAXMINOR limit. */
snd_c_shift = 24 - snd_u_shift - snd_d_shift;
}

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