UCOM(4) | Device Drivers 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.

May 15, 2024 | Debian