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Groking the Linux SPI Subsystem

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Groking the Linux SPI Subsystem
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611
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CC Attribution 2.0 Belgium:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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Production Year2017

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Abstract
The Serial Peripheral Interconnect (SPI) bus is a ubiquitous de facto standardfound in many embedded systems produced today. The Linux kernel has longsupported this bus via a comprehensive framework which supports both SPImaster and slave devices. The session will explore the abstractions that theframework provides to expose this hardware to both kernel and userspaceclients. The talk will cover which classes of hardware supported and use casesoutside the scope of the subsystem today. In addition, we will discuss subtlefeatures of the SPI subsystem that may be used to satisfy hardware andperformance requirements in an embedded Linux system.