---
name: "qcset"
section: "1"
platform: "linux"
package: "qc-usb-utils"
version: "0.6.6-7"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/qcset"
---

# qcset(1)

Logitech QuickCam driver configurator

## NAME

qcset - Logitech QuickCam driver configurator

## SYNOPSIS

**qcset** \[*device*\] \[*options*\] \[*module\_parameters*\]

## DESCRIPTION

qcset is a tool for manipulating the registrers of the Logitech QuickCam camera, and the kernel module parameters.

It operates on */dev/video0* by default, but you can specify a different device as a first argument.

## OPTIONS

The *val* values should be between 0...65535 inclusive, 32768 is the default.

- **-h**

  Display this help

- **-i**

  Display camera information

- **-r**

  Display all known registers of camera

- **-a**

  Display all (including empty) registers of camera

- **-b** *val*

  Set brightness (camera exposure time)

- **-u** *val*

  Set hue (not supported with all sensors)

- **-o** *val*

  Set color strength (increase when setting hue)

- **-c** *val*

  Set contrast (camera gain)

- **-w** *val*

  Set whiteness (image sharpness when quality=best)

- **-s** r

  Settings read (from STDIN)

- **-s** w

  Settings write (to STDOUT)

- **-g** v

  Enable gamma correction with the given gamma value

**-g** rg:gg:bg

-

  Specify different gamma value for each color channel

**-g** rg:gg:bg:rw:gw:bw

-

  Specify also white balance (0.55:0.55:0.55:1.0:1.0:1.0)

- **-g** +

  Enable software lookup-table

- **-e** +

  Same as '-g +'

- **-g** -

  Disable software lookup-table

- **-e** -

  Same as '-g -'

- **-g** '?'

  Display software lookup-table status and contents

- **-e** '?'

  Same as '-g '?''

- **-e** filename.ppm

  Generate static equalization based on image in given raw PNM/PPM file.

## MODULE PARAMETERS

Module parameters are modified and queried using the following syntax:

-

  *parameter*=*value*

  *parameter?*

The values are integers or a list of symbolic names separated by commas. This is the list of possible parameters and its symbolic values:

- **debug**

  user, camera, init, logic, errors, adaptation, controlurbs, bitstream, interrupts, mutex, common, frame, all

- **qcdebug**

  user, camera, init, logic, errors, adaptation, controlurbs, bitstream, interrupts, mutex, common, frame, all

- **keepsettings**

  y, n

- **settle**

  *number*

- **subsample**

  y, n

- **compress**

  y, n

- **frameskip**

  *number*

- **quality**

  fastest, good, horizontal, bilinear, better, best

- **adaptive**

  y, n

- **equalize**

  y, n

- **userlut**

  y, n

- **retryerrors**

  y, n

- **compatible**

  16x, dblbuf, torgb

- **video\_nr**

  *number*

## AUTHOR

qcset was written by Tuukka Toivonen \<tuukkat@ee.oulu.fi\>.

This manual page was written by Martin Ferrari \<martin.ferrari@gmail.com\> for the Debian project (but may be used by others).