The USB implementors forum also specified how CDC subclasses should act, including for those devices intended to talk with each other over the public switched telephone network (PSTN). The USB implementors forum organization has described how devices conforming to the Communications Device Class (CDC) should present themselves to the USB host. Warning: this is a Linux specific post, although it also contains genuine pieces of USB culture. Have you ever wondered why some USB devices used /dev/ttyUSB0 (or 1, or n) and others /dev/ttyACM0 (or 1, or n) when they are plugged into the host computer, while they seem to be acting as UART devices ( RS-232-like) over USB in both cases? Have you wondered why example USB firmwares for microcontrollers always end up with names such as /dev/ttyACM0 and never as /dev/ttyUSB0?
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It’s quite a pain to lose all those memorable photos and you’d definitely try to restore them in any of the possible ways. Fortunately, we can recover deleted photos from SD card on Windows 10 using ZAR X recovery tool. We’ve witnessed the rapid increase in storage technology which allows us to store these images but there is a risk of losing these photos either in the form of accidental deletion or unfortunate data corruption. The camera is one of the greatest discoveries in the past few decades considering its ability to capture a moment of our precious time. In this digital age, most of our memories are stored in the form of digital media like photos and videos. Since then I upgraded from the stock 128GB SSD to an OWC 480GB SSD to allow for a 200GB data partition for a shared resource between 2 140GB partitions for MacOS Big Sur 11.6 and Windows 10. Start the Mac and hold down the option key. About 6 weeks ago I purchased a MacBook Air 2017 which is Intel based.Insert the flash drive in a USB port on your Mac.Once your new disk is installed, do the following. Use the Disk Utility application to create a single partition to install El Capitan (OS X 10.11). Start the Mac and hold down the option key. Insert the flash drive in a USB port on your Mac. If not, the rest of this guide continues: Once your new disk is installed, do the following. I don't own the tool or promote it so I won't link it but I do recommend it since it helped me. It will create the bootable USB device for you. If you are not able to do follow the instructions on the link above, or are wary or using command lines, download a free tool called Unibeast onto your Mac. For this you will need a USBīoth of the above steps are outlined at the Apple web site: " Create a bootable installer for OS". Download El Capitan (OS X 10.11) from the Mac App Store.As is well known Intel hardware is optimized for Windows and I think this may be the major cause for the boot time difference.To avoid having to install OS X twice, do the following.īefore removing your existing hard disk, follow the steps given below: My thought/guess on this is that it is an Intel based system running an I5 CPU and Intel 6000 graphics. I know that the boot time difference is not due to the Windows install being new and the MacOS install being older and slowed down due to accumulated garbage as the install of Big Sur was done clean to a raw drive just 2 weeks ago. Everything is fine and working fine but I'm curious as to if my guess is correct as to why Windows boots to login quicker than MacOS Big Sur.īoot time test was done in both cases through the Boot Camp boot manager. I am new here so hope that I'm posting this in the correct forum.Ībout 6 weeks ago I purchased a MacBook Air 2017 which is Intel based. |
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February 2023
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