# change spidev master to slave

**URL:** <https://forums.developer.nvidia.com/t/change-spidev-master-to-slave/79408>\
**Category:** Jetson TX2\
**Created:** [August 6, 2019, 5:49am UTC](https://forums.developer.nvidia.com/t/change-spidev-master-to-slave/79408 "2019-08-06T05:49:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![maravich](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@maravich](https://forums.developer.nvidia.com/u/maravich)\
**Post date:** [August 6, 2019, 5:49am UTC](https://forums.developer.nvidia.com/t/change-spidev-master-to-slave/79408/1 "2019-08-06T05:49:34Z")

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I see 3 devices in spidev, they are;

/dev/spidev1.0 /dev/spidev2.0 /dev/spidev2.1 /dev/spidev3.0 /dev/spidev3.1

and I have folder which is /sys/class/spi\_master and there are 3 file spi1, spi2 and spi3. There is no spi\_slave file in /sys/class folder. And also when I was trying spidev module, all of them(spi1,2 and 3) were master. So, how can I change property of spi’s to slave?

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**Author:** ![ShaneCCC](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/shaneccc/32/14043_2.png) [@ShaneCCC](https://forums.developer.nvidia.com/u/ShaneCCC)\
**Post date:** [August 6, 2019, 6:31am UTC](https://forums.developer.nvidia.com/t/change-spidev-master-to-slave/79408/2 "2019-08-06T06:31:44Z")

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Have a check below document

> <https://github.com/arter97/android_kernel_nvidia_shieldtablet/blob/master/Documentation/devicetree/bindings/spi/nvidia%2Cspi-slave-tegra124.txt>

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<div class="post-metadata">

**Author:** ![maravich](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@maravich](https://forums.developer.nvidia.com/u/maravich)\
**Post date:** [August 6, 2019, 7:30am UTC](https://forums.developer.nvidia.com/t/change-spidev-master-to-slave/79408/3 "2019-08-06T07:30:07Z")

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Thank you @ShaneCCC

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**Author:** ![nadeemm](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/nadeemm/32/367020_2.png) [@nadeemm](https://forums.developer.nvidia.com/u/nadeemm)\
**Post date:** [October 18, 2021, 6:33pm UTC](https://forums.developer.nvidia.com/t/change-spidev-master-to-slave/79408/4 "2021-10-18T18:33:24Z")

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