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by Guido Socher (homepage) About the author: Guido loves Linux not only because it is fun to discover the great possibilities of this systems but also because of the people involved in its design. Content: |
Abstract:
Recently I decided to buy a new digital camera. As usual I looked
for cameras supported by Linux first. I never buy any hardware
unless it is supported by Linux. I generally recommend that
strategy to everybody, even if they still have another operating
system installed. It gives you more freedom and flexibility. You
will not need to buy new hardware when one day you decide to work
only with Linux. www.gphoto.org provided the answer: Yes, Minolta
Dimage 5, one of the cameras that I had in mind, was fully
supported.
I bought the Dimage 5 and wanted to get the images out off the
camera into the computer but surprise, surprise: All Linux sites
talking about Dimage 5 said it would work with Linux but I could
not find a single word on how to get it working @!?%!
That was the moment I decided that I will write a short article
about Linux and Minolta Dimage.
UNUSUAL_DEV( 0x0686, 0x4008, 0x0001, 0x0001,
"Minolta",
"Dimage 5",
US_SC_SCSI, US_PR_BULK, NULL, US_FL_START_STOP ),
UNUSUAL_DEV( 0x0686, 0x4006, 0x0001, 0x0001,
"Minolta",
"Dimage 7",
US_SC_SCSI, US_PR_BULK, NULL, US_FL_START_STOP ),
That was the hardest part! The rest is straight forward. I informed the maintainer of the file about these entries. Hopefully some future kernel version will have those lines included.
Now recompile the kernel and make sure that you have selected the following options in addition to the things that you need normally for you hardware.# General setup
CONFIG_HOTPLUG=y
# SCSI support
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_SR_EXTRA_DEVS=4
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# File systems
CONFIG_FAT_FS=m
CONFIG_VFAT_FS=m
# USB support
CONFIG_USB=y
CONFIG_USB_DEVICEFS=y
# USB Controllers
CONFIG_USB_UHCI=m
CONFIG_USB_UHCI_ALT=m
CONFIG_USB_OHCI=m
# USB Device Class drivers
CONFIG_USB_STORAGE=m
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_DPCM=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_JUMPSHOT=y
#create links in /usr/include for:
scsi -> ../src/linux/include/scsi
asm -> ../src/linux/include/asm-i386
linux -> ../src/linux/include/linux
# configure:
make xconfig
# compile:
make dep
make clean
make bzImage
make modules
make modules_install
cp /usr/src/linux/arch/i386/boot/zbImage /boot/vmlinuz-2.4.17
cp /usr/src/linux/System.map /boot/System.map-2.4.17
cp /boot/System.map-2.4.17 /boot/System.map
cp /usr/src/linux/.config /boot/Config-2.4.17
#edit /etc/lilo.conf
# run lilo (or grub if you use it)
/sbin/lilo
#reboot the computer
Thanks to Seth W. Klein for pointing out that it is no longer best to make symlinks from /usr/include. For a detailed explanation see this mail from Linus.
modprobe usb-uhci
modprobe usb-storage
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3
Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0686 ProdID=4008 Rev= 0.01
S: Manufacturer=MINOLTA DIMAGE CAMERA
S: Product=DIMAGE CAMERA
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50
Driver=usb-storage
E: Ad=03(O) Atr=02(Bulk) MxPS= 16 Ivl= 0ms
mount -t usbdevfs /proc/bus/usb
For those who are curious what the numbers on the driver line in the devices file mean a short explanation. The camera tell the computer what kind of protocol it speaks:Cls=08(stor.) -> Class usb storage
Sub=06 -> USB sub class 06= transparent SCSI =US_SC_SCSI (see
protocol.h from kernel sources)
Prot=50 -> protocol usb bulk transfer only =US_PR_BULK (see
transport.h from kernel sources)
fdisk -l /dev/sda
Disk /dev/sda: 4 heads, 32 sectors, 244 cylinders
Units = cylinders of 128 * 512 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 245 15664 1 FAT12
/dev/sda1 /mnt/camera0 vfat rw,noauto,user 0 0
Create the directory /mnt/camera0 and make it world writable:mkdir /mnt/camera0
chmod 777 /mnt/camera0
chmod 666 /dev/sda1
mount /mnt/camera0
and get your pictures from the directory tree below /mnt/camera0!cfimageget .
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Translation information:
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2002-07-21, generated by lfparser version 2.29