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UCOM(4) FreeBSD Kernel Interfaces Manual UCOM(4) NAME ucom - USB tty support SYNOPSIS ucom* at moscom? # MosChip Semiconductor MCS7703 ucom* at uark? # Arkmicro Technologies ucom* at ubsa? # Belkin ucom* at uchcom? # WinChipHead CH9102/343/341/340 ucom* at ucycom? # Cypress ucom* at uftdi? # FTDI ucom* at uipaq? # iPAQ ucom* at ukspan? # Keyspan ucom* at umcs? # MosChip Semiconductor multiport ucom* at umct? # MCT ucom* at umodem? # Standardized umodem ucom* at umsm? # Qualcomm MSM ucom* at uplcom? # Prolific PL-2303 ucom* at uscom? # simple USB serial adapters ucom* at uslcom? # Silicon Laboratories CP2101/CP2102 ucom* at uslhcom? # Silicon Laboratories CP2110 ucom* at uticom? # Texas Instruments TUSB3410 ucom* at uvisor? # Handspring Visor ucom* at uvscom? # SUNTAC Slipper U VS-10U ucom* at uxrcom? # Exar XR21V1410 DESCRIPTION The ucom driver attaches to USB modems, serial ports, and other devices that need to look like a tty. The ucom driver behaves like a tty(4): this means that normal programs such as cu(1) or pppd(8) can be used to access the device. The portno locator can be used to decide which port to use for devices that have multiple external ports. FILES /dev/ttyU? tty devices /dev/cuaU? call out devices (see tty(4)) SEE ALSO intro(4), tty(4), usb(4) HISTORY The ucom driver appeared in NetBSD 1.5. OpenBSD support was added in OpenBSD 2.7. FreeBSD 14.1-RELEASE-p8 May 15, 2024 FreeBSD 14.1-RELEASE-p8