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buffer.h
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dl
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events.h
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dl
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types.h
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dl
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/usr/include/linux/iio/buffer.h
(985B)
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* industrial I/O buffer definitions needed both in and out of kernel */ #ifndef _IIO_BUFFER_H_ #define _IIO_BUFFER_H_ #include <linux/types.h> /* Flags for iio_dmabuf.flags */ #define IIO_BUFFER_DMABUF_CYCLIC (1 << 0) #define IIO_BUFFER_DMABUF_SUPPORTED_FLAGS 0x00000001 /** * struct iio_dmabuf - Descriptor for a single IIO DMABUF object * @fd: file descriptor of the DMABUF object * @flags: one or more IIO_BUFFER_DMABUF_* flags * @bytes_used: number of bytes used in this DMABUF for the data transfer. * Should generally be set to the DMABUF's size. */ struct iio_dmabuf { __u32 fd; __u32 flags; __u64 bytes_used; }; #define IIO_BUFFER_GET_FD_IOCTL _IOWR('i', 0x91, int) #define IIO_BUFFER_DMABUF_ATTACH_IOCTL _IOW('i', 0x92, int) #define IIO_BUFFER_DMABUF_DETACH_IOCTL _IOW('i', 0x93, int) #define IIO_BUFFER_DMABUF_ENQUEUE_IOCTL _IOW('i', 0x94, struct iio_dmabuf) #endif /* _IIO_BUFFER_H_ */
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