* Why use spin_lock or spin_lock_irq in trigger callback (audio capture)?
@ 2010-02-25 21:32 Yiliang Bao
2010-02-26 9:05 ` Clemens Ladisch
0 siblings, 1 reply; 2+ messages in thread
From: Yiliang Bao @ 2010-02-25 21:32 UTC (permalink / raw)
To: alsa-devel
Hi,
I looked at some PCI audio capture driver like BT878 (sound/pci/bt87x.c) or
SAA7134 (drivers/media/video/saa7134-alsa.c), I found that spin_lock instead
of spin_lock_irq (or spin_lock_irqsave) is used in trigger function. Is
there any reason for that?
Thanks,
Yiliang
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2010-02-25 21:32 Why use spin_lock or spin_lock_irq in trigger callback (audio capture)? Yiliang Bao
2010-02-26 9:05 ` Clemens Ladisch
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