*参照元 [#ud0298aa] #backlinks *説明 [#ud6eb154] -パス: [[linux-4.4.1/drivers/media/v4l2-core/videobuf2-core.c]] -FIXME: これは何? --説明 **引数 [#v7cc73a3] -struct vb2_queue *q -- --[[linux-4.4.1/vb2_queue]] -unsigned int index -- -void *pb -- **返り値 [#vd18d3aa] -int -- **参考 [#p8087cab] *実装 [#f89186e4] /** * vb2_core_querybuf() - query video buffer information * @q: videobuf queue * @index: id number of the buffer * @pb: buffer struct passed from userspace * * Should be called from vidioc_querybuf ioctl handler in driver. * The passed buffer should have been verified. * This function fills the relevant information for the userspace. * * The return values from this function are intended to be directly returned * from vidioc_querybuf handler in driver. */ int vb2_core_querybuf(struct vb2_queue *q, unsigned int index, void *pb) { return call_bufop(q, fill_user_buffer, q->bufs[index], pb); - --q->buf_ops->fill_user_buffer を呼び出す。 ---q->buf_ops は const struct vb2_buf_ops * 型 ---[[linux-4.4.1/vb2_buf_ops]] --[[linux-4.4.1/call_bufop()]] } EXPORT_SYMBOL_GPL(vb2_core_querybuf); - --[[linux-4.4.1/]] *コメント [#ube9dca1]