In sound/oss/vidc.c, the function vidc_audio_trigger contains thefollowing code:
struct audio_operations *adev = audio_devs[dev];
if (enable_bits & PCM_ENABLE_OUTPUT) { if (!(adev->flags & DMA_ACTIVE)) { unsigned long flags;
local_irq_save(flags);
/* prevent recusion */ adev->flags |= DMA_ACTIVE;
... } }
I wonder if the use of DMA_ACTIVE is correct? This constant is defined inthe file sound/oss/dev_table.h within the definition of the structure dma_buffparms. But here it is being used with the structure audio_operations. The definition of audio_operations also contains the definitions of some constants. Indeed, one of them, DMA_DUPLEX has the same value as DMA_ACTIVE.
thanks, julia