*参照元 [#jf9078e2] #backlinks *説明 [#v5582e21] -パス: [[linux-4.4.1/drivers/staging/android/ion/ion.c]] -FIXME: これは何? --説明 **引数 [#q0e6273c] -struct dma_buf_attachment *attachment -- --[[linux-4.4.1/dma_buf_attachment]] -enum dma_data_direction direction -- --[[linux-4.4.1/dma_data_direction]] **返り値 [#l273dc1e] -struct sg_table * -- --[[linux-4.4.1/sg_table]] **参考 [#pc42a657] *実装 [#c1c2cf25] static struct sg_table *ion_map_dma_buf(struct dma_buf_attachment *attachment, enum dma_data_direction direction) { struct dma_buf *dmabuf = attachment->dmabuf; struct ion_buffer *buffer = dmabuf->priv; - --[[linux-4.4.1/dma_buf]] --[[linux-4.4.1/ion_buffer]] ion_buffer_sync_for_device(buffer, attachment->dev, direction); return buffer->sg_table; - --[[linux-4.4.1/ion_buffer_sync_for_device()]] } *コメント [#r36aa6a8]