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drivers/base/devtmpfs.c devtmpfs is divided into two implementations 1. CONFIG_TMPFS is not defined 2. Define CONFIG_TMPFS 67 static struct file_system_type internal_fs_type = { ...[Details]
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On the morning of September 18, Apple launched the new Apple Watch Series 6 on Wednesday. One of its important features is blood oxygen detection. According to Apple's official website, this feature ...[Details]
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The correct wiring method when using an AC ammeter to measure single-phase AC current is as shown in the figure. Figure (a) shows the direct connection method of an AC ammeter, which is suitable when...[Details]
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The RAM and ROM of the PIC microcontroller are separate. If defined like this char *json_char ="{"vvvv":"chen"}"; It may be compiled, but there will be problems when running. From the text analys...[Details]
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Recently, Honor launched two new 5G products at once, in addition to the already advertised 5G large-screen phone Honor X10 Max, there is also the last new product in the Honor 30 series, the Honor 3...[Details]
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On November 28, 36Kr released the list of "WISE2023 Future Business King Annual Enterprises". With its innovative product competitiveness and strong development potential, Weijing Energy Storage wa...[Details]
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JPMorgan Chase recently released a report saying that TSMC has won Apple's contract to manufacture processors for four new iPhones that will be launched in the second half of the year. It is reported...[Details]
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In 2019, my country's air-conditioning market encountered a cold snap. According to data from the National Bureau of Statistics, the growth rates of air-conditioning production and sales both dropped...[Details]
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According to previous news, OnePlus will launch a new generation of flagship mobile phones in March - the OnePlus 9 series, which will still have two models: OnePlus 9/9 Pro. Recently, a blog...[Details]
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Model identification analysis of AVR microcontrollers
1. The letter following the model indicates the voltage operating range. With "V": 1.8-5.5V; if it is not included, without "V": 2.7-5.5V.
E...[Details]
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In the 1980s, zero-current switching quasi-resonant conversion technology was introduced, and manufacturers conceived a brick-shaped power conversion component. It became a very flexible power co...[Details]
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The mobile phone market has begun to be saturated, so in order to continue to develop and increase their own market share, many mobile phone manufacturers are working hard, and cost-effective mobile...[Details]
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"All talk is about ideology, but all heart is about business." This sentence can be said to be more accurate than ever to describe some mobile phone brands. After Apple stopped including chargers for...[Details]
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"After a year of preparation last year, the time has come for in-vehicle UWB to be installed in vehicles, and this year is expected to officially enter the first year of mass production." Zhao Ruixia...[Details]
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We mentioned earlier that the principle of touch screen calibration is to allow the LCD to correspond to the coordinates of the touch screen. 1. Implementation of five-point method calibration 1. We ...[Details]