test

System Administration Guide: Devices and File Systems

ProcedureHow to Add a USB Camera

Use this procedure to add a USB camera.

Steps

  1. Become superuser.

  2. Plug in and turn on the USB camera.

    The system creates a logical device for the camera. After the camera is plugged in, output is written to the /var/adm/messages file to acknowledge the device's connection. The camera is seen as a storage device to the system.

  3. Examine the output that is written to the /var/adm/messages file.

    Examining this output enables you to determine which logical device was created so that you can then use that device to access your images. The output will look similar to the following:


    # more /var/adm/messages
Jul 15 09:53:35 buffy usba: [ID 349649 kern.info]    OLYMPUS, C-3040ZOOM,
 000153719068
Jul 15 09:53:35 buffy genunix: [ID 936769 kern.info] scsa2usb1 is 
/pci@0,0/pci925,1234@7,2/storage@2
Jul 15 09:53:36 buffy scsi: [ID 193665 kern.info] sd3 at scsa2usb1: 
target 0 lun 0

    Match the device with a mountable /dev/dsk link entry, by doing the following:


    # ls -l /dev/dsk/c*0 | grep /pci@0,0/pci925,1234@7,2/storage@2
 lrwxrwxrwx   1 root     root          58 Jul 15  2002 c3t0d0p0 ->
 ../../devices/pci@0,0/pci925,1234@7,2/storage@2/disk@0,0:a

  4. Mount the USB camera file system.

    The camera's file system is most likely a PCFS file system. In order to mount the file system on the device created, the slice that represents the disk must be specified. The slice is normally s0 for a SPARC system, and p0 for an x86 system.

    For example, to mount the file system on an x86 system, execute the following command:


    # mount -F pcfs /dev/dsk/c3t0d0p0:c /mnt

    To mount the file system on a SPARC system, execute the following command:


    # mount -F pcfs /dev/dsk/c3t0d0s0:c /mnt

    For information on mounting file systems, see Chapter 17, Mounting and Unmounting File Systems (Tasks).

    For information on mounting different PCFS file systems, see mount_pcfs(1M).

  5. Verify that the image files are available.

    For example:


    # ls /mnt/DCIM/100OLYMP/
P7220001.JPG*  P7220003.JPG*  P7220005.JPG*
P7220002.JPG*  P7220004.JPG*  P7220006.JPG*

  6. View and manipulate the image files created by the USB camera.


    # /usr/dt/bin/sdtimage P7220001.JPG &

  7. Unmount the file system before disconnecting the camera.

    For example:


    # umount /mnt

  8. Turn off and disconnect the camera.