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1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
6  *	Andrea Paterniani <a.paterniani@swapp-eng.it>
35  * struct spi_ioc_transfer - describes a single SPI transfer
52  * cases, such as 32-bit i386 userspace over a 64-bit x86_64 kernel).
53  * Zero-initialize the structure, including currently unused fields, to
65  * in a 16-bit word), the next could read a block of 8-bit data before
67  * could send a different nine bit command (re-selecting the chip), and the
94 /* not all platforms use <asm-generic/ioctl.h> or _IOC_TYPECHECK() ... */
96 	((((N)*(sizeof (struct spi_ioc_transfer))) < (1 << _IOC_SIZEBITS)) \
102 #define SPI_IOC_RD_MODE			_IOR(SPI_IOC_MAGIC, 1, __u8)
103 #define SPI_IOC_WR_MODE			_IOW(SPI_IOC_MAGIC, 1, __u8)
109 /* Read / Write SPI device word length (1..N) */