resource_size()是个内联函数,返回segment的大小(此处是0x1000)。 of_iomap()函数是of_address_to_resource()和ioremap()的组合,本质上等效于ioremap(re.start, resource_size(&res)).确保物理段已经映射到虚拟内存中,函数返回内存段的虚拟地址空间起始地址。 显然,当模块卸载或某个错误发生时,这些操作都需要有...
A Tutorial on the Device Tree (Zynq) -- Part V Application-specific data 之前提过,设备树中是一些特殊信息,这样一个驱动可以管理数片类似的硬件。例如,一个LCD显示驱动,分辨率信息和物理尺寸可能出现在设备树中。串口信息要告诉驱动当前的时钟频率。 最简单的,最常用的形式,这个信息由一条赋值语句组成: xlnx,...
Your uploaded subordinate CA certificate is shown with its status set to Verified on the Certificates tab of the working pane. Create a client certificate for a device After you created your subordinate CA, you can create client certificates for your devices. The files and folders created for yo...
DOCTYPE html>MSAL Node Electron Sample App<!-- adding Bootstrap 4 for UI components -->Microsoft identity platform
The screen looks similar, except that you dragged seven individual fields into thePivotTable Fieldsareas, instead of simply dragging two hierarchies. If you're the only person creating PivotTables or Power View reports based on this data, creating hierarchies m...
To open DuckStation, double-click on . You may want to right-click it and create a shortcut to this EXE for your desktop or something, to remind you which of the three exe's you need to use. Error: MSVCP140_1.dll is missing ...
For example, this handler sees all desired property changes sent to the device from a back-end application. The delta variable contains the desired properties sent from the solution back end:JavaScript Kopiraj // Handle all desired property updates twin.on('properties.desired', function(delta) ...
In the Light section, we’ll select Choose device and select our light bulb from the dropdown. We’ll now set the wait time to how long the light should remain on with no motion detected, 120 seconds in my case. Now, we’ll click SAVE and we’re done!
Type90in the last field (on the right). ClickOK. Your PivotTable looks like the following screen. With little effort, you now have a basic PivotTable that includes fields from three different tables. What made this task so simple were the pre-existing relationships...
首先,标签("xillybus")和条目名("xillybus@50000000")。标签可以省略,条目节点名的格式为(some-name@address),最后在/sys下产生一个标准的条目(/sys/devices/axi.0/50000000.xillybus/)。这个设备树的数据位于/proc/device-tree/axi@0/xillybus@50000000/,不过内核肯定不是从这里访问设备树的。