Memory Management Helpers
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Chapter 1. Management of Cards and Devices
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Memory Management Helpers
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