I/O devices: GPIO and HBA

Video Activity
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Time
21 hours 25 minutes
Difficulty
Intermediate
CEU/CPE
21
Video Transcription
00:00
>> Hey, Cybrarians,
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and welcome back to the Linux plus
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course here at Cybrary.
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I'm your instructor Rob Goelz,
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and in today's lesson we're going to
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be covering I/O devices.
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Upon completion of this lesson,
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you are going to be able to explain
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the purpose of GPIO and
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then also identify various types of host bus adapters.
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The general purpose input/output or GPIO interface is
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commonly found on utility computing devices
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such as the Raspberry Pi.
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Now, GPIO provides multiple pins or digital lines,
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and these can be individually programmed.
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These lines will exist on
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a integrated chip or a pin on a chip,
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and GPIO is used to communicate and
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program or control external devices such as LEDs,
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sensors, and motors.
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A lot of times you'll see
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GPIOs stuff use for Internet of Things devices,
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tiny devices that can be used to manage sensors,
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motors, what have you.
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Now, a host bus adapter is just an adapter.
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It's a circuit board or controller that's used to
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connect to multiple devices to a system.
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One controller, multiple devices.
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It's generally connected using a PCI slot,
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or nowadays more commonly a PCIe slot.
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Some examples of host bus adapters are IDE, SCSI,
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and SATA controllers, which are storage controllers
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used to connect to storage devices.
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ISCSI and Fiber Channel controllers
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are used for storage and storage networks.
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Then ethernet adapters we talked about are
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network adapters we use to connect to a wired network.
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But with that, we've reached the end of this lesson.
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In this lesson, we cover the purpose of
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GPIO as well as host bus adapter types.
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Thanks so much for being here and I look
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forward to seeing you in the next lesson.
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