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[01/10] ALSA: aloop: Describe units of variables

Message ID 1553529644-5654-2-git-send-email-twischer@de.adit-jv.com (mailing list archive)
State New, archived
Headers show
Series ALSA: aloop: Support selection of snd_timer | expand

Commit Message

Timo Wischer March 25, 2019, 4 p.m. UTC 
From: Timo Wischer <twischer@de.adit-jv.com>

Describe the unit of the variables used to calculate the hw pointer
depending on jiffies ticks.

Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>
---
 sound/drivers/aloop.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 8c3fbe1..70145e6 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -116,8 +116,10 @@  struct loopback_pcm {
 	/* flags */
 	unsigned int period_update_pending :1;
 	/* timer stuff */
-	unsigned int irq_pos;		/* fractional IRQ position */
-	unsigned int period_size_frac;
+	unsigned int irq_pos;		/* fractional IRQ position in jiffies
+					 * ticks
+					 */
+	unsigned int period_size_frac;	/* period size in jiffies ticks */
 	unsigned int last_drift;
 	unsigned long last_jiffies;
 	struct timer_list timer;