The ALSA Driver API
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Memory Management Helpers

Table of Contents
copy_to_user_fromio --  copy data from mmio-space to user-space
copy_from_user_toio --  copy data from user-space to mmio-space
snd_malloc_pages --  allocate pages with the given size
snd_free_pages --  release the pages
snd_dma_alloc_pages --  allocate the buffer area according to the given type
snd_dma_alloc_pages_fallback --  allocate the buffer area according to the given type with fallback
snd_dma_free_pages --  release the allocated buffer
snd_dma_get_reserved_buf --  get the reserved buffer for the given device
snd_dma_reserve_buf --  reserve the buffer
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snd_unregister_deviceUpcopy_to_user_fromio