Re: [PATCH 07/15] iio: core: Add new DMABUF interface infrastructure

2021-11-21 Thread Jonathan Cameron
On Mon, 15 Nov 2021 14:19:17 + Paul Cercueil wrote: > Add the necessary infrastructure to the IIO core to support a new DMABUF > based interface. > > The advantage of this new DMABUF based interface vs. the read() > interface, is that it avoids an extra copy of the data between the > kernel

[PATCH 07/15] iio: core: Add new DMABUF interface infrastructure

2021-11-15 Thread Paul Cercueil
Add the necessary infrastructure to the IIO core to support a new DMABUF based interface. The advantage of this new DMABUF based interface vs. the read() interface, is that it avoids an extra copy of the data between the kernel and userspace. This is particularly userful for high-speed devices whi