Qué (quién) es Device Control - definición

USB DEVICE CLASS USED FOR NETWORKING, FAX, TELEPHONY, AND SERIAL COMMUNICATIONS

Communications Device Class; Usb cdc; Abstract Control Model; USB CDC

Device Control

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<character> One of the four ASCII characters, DC1, DC2, DC3, and DC4, once used to remotely control equipment (e.g. a paper tape reader) via electromagnetic switches. The characters were usually paired, DC1/DC3 turning one device on/off, and DC2/DC4 another. [Other examples of equipment?] (1996-08-20)

Device control register

HARDWARE REGISTER THAT CONTROLS SOME COMPUTER HARDWARE DEVICE LIKE A PERIPHERAL OR AN EXPANSION CARD

Device Control Register

In computing, a device control register is a hardware register that controls some computer hardware device, for example a peripheral or an expansion card.

https://en.wikipedia.org/wiki/Device_control_register

Device Control 2

CONTROL CHARACTERS, RANGING FROM U+0000 TO U+001F (C0) AND U+0080 TO U+009F (C1) IN UNICODE

ASCII control character; C1 control code set; C1 control code; ISO 6429; C0 and C1 control character; C1 control codes; Record Separator; Data link escape; Device control 2; End of medium; Field separator; Device control 4; Group separator; Record separator; Unit separator; Start of heading; Start of text; Data Link Escape; Data link escape character; ␒; ␔; Device Control 1; Device Control 2; Device Control 3; Device Control 4; File separator; File Separator; C0 and C1 controls; C0 controls; C0 control codes; C1 controls; Start Of Text; ; End of Medium; C0 control characters; Start-of-Text; Start-of-Header; DC1; Device Control Two; Device Control Three; Device Control Four; Device Control One; ␓; ␑; ; PU2 (ANSI); PU1 (ANSI); Reverse Index (ANSI); ^\; ASCII control characters; ; C0 control code; Start of Text; Start of Heading; ; ^^ (control code); Group Separator; Unit Separator; DC4 (control code); DC1 (control code); DC2 (control code); DC3 (control code); NUL (control code); SOH (control code); STX (control code); ETX (control code); EOT (control code); ACK (control code); BEL (control code); BS (control code); HT (control code); LF (control code); VT (control code); FF (control code); CR (control code); SO (control code); SI (control code); US (control code); DLE (control code); NAK (control code); SYN (control code); ETB (control code); CAN (control code); EM (control code); SUB (control code); ESC (control code); FS (control code); GS (control code); RS (control code); HOP (control code); DEL (control code); PAD (control code); BPH (control code); NBH (control code); IND (control code); HTS (control code); SSA (control code); NEL (control code); HTJ (control code); VTS (control code); PLD (control code); PLU (control code); RI (control code); SS2 (control code); SS3 (control code); DCS (control code); PU1 (control code); PU2 (control code); STS (control code); MW (control code); CCH (control code); SPA (control code); EPA (control code); APC (control code); SOS (control code); SGCI (control code); SCI (control code); CSI (control code); ST (control code); OSC (control code); PM (control code); SP (control code); ESA (control code); TAB (control code); ASCII 1; ASCII 2; ASCII 16; ASCII 17; ASCII 18; ASCII 31; ASCII 30; ASCII 29; ASCII 28; ASCII 25; ASCII 20; ASCII 19; Device Control String; \x1; \x1F; \x1E; \x1C; \x1D; \x19; \x2; \x10; \x11; \x12; \x13; \x14; \x01; \x02; U+0001; U+0002; U+0010; U+0011; U+0012; U+0013; U+0014; U+0019; U+001C; U+001D; U+001E; U+001F; Information separator three; Information separator four; Information separator two; Information separator one; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; DIN 31626; ISO 6630; JIS X 0207; ASCII control codes; ASCII control code

<character> (DC2) The mnemonic for ASCII character 18, one of the four Device Control characters. (1996-06-28)

Wikipedia

USB communications device class

USB communications device class (or USB CDC) is a composite Universal Serial Bus device class.

The communications device class is used for computer networking devices akin to a network card, providing an interface for transmitting Ethernet or ATM frames onto some physical media. It is also used for modems, ISDN, fax machines, and telephony applications for performing regular voice calls.

Microsoft Windows versions prior to Windows Vista do not work with the networking parts of the USB CDC, instead using Microsoft's own derivative named Microsoft RNDIS, a serialized version of the Microsoft NDIS (Network Driver Interface Specification). With a vendor-supplied INF file, Windows Vista works with USB CDC and USB WMCDC devices.

This class can be used for industrial equipment such as CNC machinery to allow upgrading from older RS-232 serial controllers and robotics, since they can keep software compatibility. The device attaches to an RS-232 communications line and the operating system on the USB side makes the USB device appear as a traditional RS-232 port. While chip manufacturers such as Prolific Technology, FTDI, Microchip, and Atmel manufacture USB chips and provide drivers that expose the chip as a virtual RS-232 device, the chips do not use USB CDC protocol and rather use their custom protocols, though there are some exceptions (PL2305).

Devices of this class are also implemented in embedded systems such as mobile phones so that a phone may be used as a modem, fax or network port. The data interfaces are generally used to perform bulk data transfer.

https://en.wikipedia.org/wiki/USB communications device class