Merge branch 'libertas' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...

[mirror_ubuntu-zesty-kernel.git] / sound / usb / usbaudio.c

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index b6d886373bb001b46da476a0cb1a2f3c6d44db19..8ebc1adb5ed9818ddb9c6d8cfef453ca418110cd 100644 (file)
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -1878,6 +1878,9 @@ static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substre
        }
 
        /* set the period time minimum 1ms */
+       /* FIXME: high-speed mode allows 125us minimum period, but many parts
+        * in the current code assume the 1ms period.
+        */
        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME,
                                     1000 * MIN_PACKS_URB,
                                     /*(nrpacks * MAX_URBS) * 1000*/ UINT_MAX);