hci meaning

Keywords: Bluetooth protocol HCI Anatomy HCI Overview HCI Note LMP l2cap SDP RFCOMMZhongjunIn the spirit of mutual learning purposes, to share this series of articles, welcome reprint, please specify the author, respect for copyright, thank youPlease correct me if the article is not in the wrong place, learn togetherThis series is currently intended to:LMP anatom

There are multiple threads in the Bluetooth process, where the HCI thread is responsible for processing and sending and receiving the Bluetooth host side and controller.This article analyzes the process of data processing for this thread.1. HCI-related interfacesFirst look at the related interfaces of HCI: in HCI_LAYER.C: const hci_t *hci_layer_get_interface ()

Dsads1. OverviewHCI supports four types of grouping: Command group commands Packet Asynchronous data grouping asynchronous Packet Synchronous Data Packet Events Group Event Packe The grouping type is a byte value before the HCI group. The packet type has the following values: Packet Packet Type command 1 asynchronous

, and traverse tasklet_actionThe tasklet_vec linked list calls each tasklet function to complete the Soft Interrupt operation.That is, call hci_rx_task () That is, when urb exists, hci_rx_task () is finally called () When the package type is HCI event, call hci_event_packet ()In hci_event_packet (), the system determines the event and processes it. The following uses hci_ev_disconn_complete as an example to see how the event is processed. This event i

[2] creating a more approachable Web site within 30 days Hci/chi (Human-computer interaction)--human-computer interaction Human-Computer Interaction CHI (Computer Human interaction), also known internationally (Hci,human Computer interaction), is an interdisciplinary study that covers a wide range of topics, including cognitive science in the field of psycho

Data Structure 1, hci_event Indicates the hardware status of the Bluetooth controller. Enum hci_event { Device_up, device Enabled Device_down: Disable the device. The device_error device has an error. }; Header file: bt_hcip.h2. hci_type Indicates the data packet type. enum HCI_TYPE { Command_packet = 1, command package Data_packet_acl = 2, access control list data Data_packet_sco = 3, connection-oriented data synchronization Event_packet = 4, event Etype_finish = End mark of 5 packets }; Header

Recently in a customer to the master-slave module, based on the S130, a little farther away from the connection will appear immediately after the phenomenon of disconnection,Traced the reason, given the HCI Error code is 0x003e, for the moment do not know what the ghost, check out a post on the Internet, explained as follows:Disconnect reason 0x3e Hci_error_code_conn_failed_to_establish I use TI CC2640 master machine, mobile phone do from the mach

Accessibility-Accessibility/Accessibility Accessibility indicates the Accessibility of the webpage. W3C Web page accessibility is defined as follows: "Webpage accessibility is accessible to people with disabilities. More specifically, the availability of web pages means that people with disabilities can perceive, understand, manipulate, interact with, and contribute to webpages. Web Accessibility also benefits non-Persons with disabilities, including the elderly who are weak due to a

In the process of Bluetooth enable, multiple threads are created and the threads are bound to the queue. This article mainly analyzes the processing of HCI data this thread.voidBtu_startup (void){. .. btu_bta_msg_queue=fixed_queue_new (Size_max);Btu_general_alarm_hash_map=hash_map_new (btu_general_alarm_hash_map_size, Hash_function_pointer, NULL, (DATA_FREE_FN) alarm_free, NULL) ;Btu_general_alarm_queue=fixed_queue_new (Size_max);Btu_oneshot_alarm_has

Contents of Beijing Union University Smart City College School of Tourism College of automation Business School College of Art [Email protected]HCI Practice 005-Web page layout

[Go] Return html tags for their original meaning, and html tags for their meaning To tell the truth, the word "div + css" does not know how many people are harmed. Maybe the author's intention is correct, but the followers have misinterpreted its meaning in terms of performance, the whole page should be a combination of div + css files. In this way, there is no v

The recent use of curl feeling is still very convenient, looked at the cookie file format of curl generated, some of the value of the meaning is not very clear, to find some information about the cookie looked down, do a memo The cookie file format generated by PHP Curl is as follows #Netscape HTTP Cookie File#http://curl.haxx.se/rfc/cookie_spec.html#This file is generated by libcurl! Edit at your own risk.Jifen. xx.comFALSE/FALSE0PHPSESSID Dmdvk314ru

Chapter eighth Introduction to object-oriented programmingThe contents of this chapter:What is object-oriented programmingOOP technologyThe Windows forms application's dependency on OOP8.1 Meaning of object-oriented programmingThe programming method described earlier, called function (or procedural) programming, often leads to so-called single applications, where all functions are contained in several code modules (often a code module). with OOP, many

Android Log Tag meaning, androidlogtag meaning One of the most important methods to analyze Android problems is to analyze logs in events. there are many system logs in the log, some of which are not very familiar with the meaning. The following is the system log tag obtained from the android source code. The Tag description is as follows: "30005 am_create_activi

Where T: class meaning, whereclass meaning public class DbEntityEntry This is a parameter type constraint. The specified T must be of the Class type. . NET supports the following types of parameter constraints:Where T: struct | T must be a structure typeWhere T: class | T must be of the Class typeWhere T: new () | T must have a non-argument ConstructorWhere T: NameOfBaseClass | T must inherit the class nam

Linux basic [Folder meaning], linux basic meaning The linux File directory is a tree directory. Bin --> Executable File Boot --> operating system boot file, system kernel, boot Information Dev --> device, device information, computer hardware device information Etc --> System Configuration directory Home --> home Directory, user folder Root --> super administrator folder with the highest Permissions

The meaning of directory and file permissions in Linux The meaning of file permission R: You can read the specific contents of this document; W: You can edit the contents of this file, including adding the details of the deleted file; X: The file has executable permissions-------Note: Here and window is not the same, in win, the file executable permissions are expressed through the extension, such as EX