Comp 3438 part i lecture 5 character device drivers ppt video. Jan 21, 2011 if you convert your powerpoint presentation to video formats such as mp4 using a converter like leawo powerpoint to video or moyea ppt to video converter, it will be easy for you to play the output video presentation on most portable devices like ipad, iphone, psp, etc. Device drivers can provide a level of security as they can run in kernelmode, thereby protecting the operating system from applications running in usermode. These devices are commonly used in meetings and presentations as they allow for a large image to be shown so everyone in a room can see. Wendy wickham this work by cammy bean is licensed under a creative commons attributionnoncommercial 3. Once you have the presentation on your phone where you can view it, the next challenge is outputting it to a monitor or projector. But we all know there are different brands and models at the time we need to purchase a new presenter device or remove control for our powerpoint presentations.
Device drivers in nix like systems all versions of unix have an abstract way of reading and writing devices. Powerpoint tools, presentation devices, presentation projectors, presentation software, presentations, slide show, slides. And this entails that you project it superbly and without any hassle. Linux device driver development powerpoint ppt presentation. For example, one of the typical patterns for learning design echos ppt presentation design. Material used for blocking or bracing and as chocks and cradle points. Char device driver i a simple device driver hello world lecture 5ii.
By making the devices act as much as possible like regular files, the same calls read, write, etc. A powerpoint presentation resource for a lesson in which students were give a preselected advert from various newspapersmagazines and asked how did the audience feel looking at the advert. It is a tiny mouse and powerful presenter with a modern design and small enough to fit into your hand and fingers. Students were then encouraged to annotate their own copy, as in the example. Separate the apis and queue implementation using the well established api and driver model used by other devices like crypto. An introduction to device drivers sarah diesburg cop 5641 cis 4930 introduction device drivers black boxes to hide details of hardware devices use standardized calls independent of the specific driver main role map standard calls to devicespecific operations can be developed separately from the rest of the kernel plugged in at runtime when needed. Output devices of a computer an output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system such as a computer which converts the electronically generated information into.
Ring 0 kernel ring 1 ring 2 ring 3 device drivers device drivers applications lest privileged most privileged privilege rings available 6. Char drivers linux device drivers, 3rd edition book oreilly. This easytouse wireless device offers effortless powerpoint presentation controls with builtin laser pointer long range 2. An input device is any device that provides input to a computer. To turn your device off, press and hold the power button again.
Chain, webbing, rope, clamps, grab hooks, binders, shackles, friction mat, etc. Logitech cube is a wireless mouse that lets you control your computer or even powerpoint presentations remotely. Device is represented as a queue manager for allocationfreeing of queues. Scribd is the worlds largest social reading and publishing site. Apparently the restriction applies only to nonoptical usb devices, meaning that a cddvd with autorun should still work, as would a u3 usb thumb which works by having its firmware tell windows yo. Char drivers the goal of this chapter is to write a complete char device driver. This presentation is intended to provide a basic level of understanding about electronic hos capabilities as are widely implemented in the us. This is the most common type of device driver and there are plenty of simple examples in the source tree. An introduction to device drivers ted baker andy wang cop 5641 cis 4930 introduction device drivers black boxes to hide details of hardware devices use standardized calls independent of the specific driver main role map standard calls to devicespecific operations can be developed separately from the rest of the kernel plugged in at runtime when needed. Thu 24 jan, character drivers, char drivers, ldd3 3, 6. Linux device driver development is the property of its rightful owner. Wireless presenters are very useful for any presenter that want to engage the audience without bothering them everytime you need to move to next slide.
Writing char device driver goals anatomy of character device driver user interface to anatomy of. Traditional wireless presentation systems allow to present the screen of one participant to the room tv or projector. Ppt linux device drivers powerpoint presentation free to download id. A series of 4 lessons focusing on presentational devices. Loading and unloading trailers with pallets feeding into. Ppt device drivers powerpoint presentation free to. Can have more than one major to a single driver but not typical.
Although many of todays highend phones have hdmi out ports that. Each char and block driver that registers with the. Pci addressing a pci device can be addressed in three ways memory locations shared by all 32bit or 64bit can be mapped at boot time to avoid collisions io ports shared by all 32bit pci addressing configuration registers uses geographical addressing never collide a pci driver can access its devices without probing just read from the. Medical device design control, validation, risk assessment, documentation, etc. Presentation on input and output device of computer shama. Such an event might be the opening of a file, a page fault, the plugging in of a new usb device, etc. We develop a character driver because this class is suitable for most. How to cast a presentation from your smartphone to your tv. To turn the device on, press and hold the button for five seconds. Make sure this fits by entering your model number this easytouse wireless device offers effortless powerpoint presentation controls with builtin laser pointer long range 2. After queue allocation enqueue and dequeue operations can happen on the queue. Char devices are accessed through nodes of the filesystem tree located in the dev directory. Jul 22, 2018 so you have completed your presentation deck and you feel good about it. Portable powerpoint and video presentation solution tablets.
The materials are not intended to provide any representations for products and services. Ppt automatic formal verification for windows device. The code of specific linux device drivers and kernel components. Operation modes polling interrupt dma character driver device properties cant be randomly accessed cant be buffered usually. Learn about presentation devices that you can use to control or play your presentation slideshows. I havent used the start presentation feature yet as i am always in presentation mode at the start. Allows for choosing the device depending on the platform. This simple example pseudodevice remembers whatever values are written to it and can then echo them back when read. Here is a powerpoint presentation that the teacher can view.
Before reading this document, we assume the reader has basic understanding of linux device drivers. Linux device driver nctu os lab chiwei yang outline overall architecture character driver block driver network driver support functions overall architecture vfs driver types character block network overall architecture cont. The sensitive data present on a device that is lost, stolen or in the possession of someone who leaves the company. An introduction to device drivers ted baker andy wang cop 5641 cis 4930 introduction device drivers black boxes to hide details of hardware devices use standardized calls independent of the specific driver main role map standard calls to device specific operations can be developed separately from the rest of the kernel plugged in at runtime when needed the role.
Autoplay powerpoint presentation on usb flash drive. We develop a character driver because this class is suitable for most simple hardware devices. If so, share your ppt presentation slides online with. An introduction to device drivers sarah diesburg cop 5641 cis 4930 introduction device drivers black boxes to hide details of hardware devices use standardized calls independent of the specific driver main role map standard calls to device specific operations can be developed separately from the rest of the kernel plugged in at runtime when needed the role of. Chapter 3 chapter 3 char drivers the goal of this chapter is to write a complete char device driver. Projector a projector is a device that enables an image, such as a computer screen, to be projected onto a flat surface. Onboard device and driver id authenticated at host system.
A sample linux character device driver i introduction linux character diver is a dynamic loadable linux module, which contains all the routines for the services of real character hardwares. Ramamurthy introduction a device driver is computer program that allows a system to interface with hardware devices. Portable powerpoint and video presentation solution. Using usb flash drive for powerpoint presentations w. Introduction to linux device drivers muli benyehuda. The adobe flash plugin is needed to view this content. However, what you should remember is thats only half the battle. The complexity of the device model makes it hard to understand by starting with a highlevel view. Device driver protocolo after driver knows which commands to issue, it starts to write them into controllers device registers. Device driver events and their associated functions between kernel space and the hardware device. Design history file dhf means a compilation of records which describe the design history of a finished device. You will see a blue light come on for four seconds. In addition to this, huddle hub one offers the unique device to device feature, which sending the screen of the presenter a.
Students are encouraged to analyse images from adverts and newspapers whilst also considering the impact of the language used. Input devices convert the users action and analog data sound, graphics, pictures into digital electronic signal that can be processed by a computer. Tap it and select the device from those it detects and it will begin casting to your tv. If you convert your powerpoint presentation to video formats such as mp4 using a converter like leawo powerpoint to video or moyea ppt to video converter, it will be easy for you to play the output video presentation on most portable devices like ipad, iphone, psp, etc. These devices are commonly used in meetings and presentations as they allow for a large image to be shown so everyone in. Linux device driver development free download as powerpoint presentation. Tell the os which pci device ids the driver supports instantiation done by the os when it finds a driver with a matching id initialisation allocate pci resources. A character device driver is one that transfers data directly to and from a user process. Device adaption uiml xhtml voicexml xhtml voicexml using ccpp interface structure style behavior content logic presentation device platform ui metaphor application 6way separation of ui description vs. A driver typically communicates with the device through the computer bus or c. In order to talk to the kernel, the driver registers with subsystems to respond to events. A free powerpoint ppt presentation displayed as a flash slide show on id.
Operation modes polling interrupt dma character driver device properties cant be randomly accessed cant be buffered usually are slow. Our hope is that,by showing how the lowlevel device components work,we can prepare you for the challenge of grasping how those components are used to build the larger structure. Character drivers the device processes individual bytes e. An infected personal device connecting to the corporate network. Jun 26, 2014 a series of 4 lessons focusing on presentational devices. Esxi driver package installation follow teradic s instructions for installing the v a with the exception that the esxcli command must include the force option.
All devices controlled by the same device driver are given the same major number, and of those. The laser pointer is also useful and surprisingly bright even at 5 m, and it conveniently runs on a couple of aaa batteries the device uses a fairly large usb dongle so youll need a free usb port to plug in to when youre using it. I have merged bits and pieces together that i have found, whilst adding some of my own resources and ideas. Use your smartphone for slideshow presentations techrepublic. This should prove useful for ks3 transition to gcse. Software device drivers are very common on unix systems. This simple example pseudo device remembers whatever values are written to it and can then echo them back when read.
Input powerpoint presentation introduction to basic computer. There are dozens of possible input devices, but the two most common ones are a keyboard mouse. Apparently theres an exploit that allows you to get control over even a logged off pc by plugging in a usb device. In addition to this, huddle hub one offers the unique devicetodevice feature, which sending the screen of the presenter also directly to all the other participants devices in the session.
Device driver or software driver is a computer program allowing higherlevel computer programs to interact with a hardware device. Located on the side of your device is a gray strip. Char drivers are also easier to understand than block drivers or network drivers which we get to in later chapters. Livescribe smartpen is a device which instantly transforms handwritten text on paper to digital format.
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