----- To steal ideas from one person is plagiarism; to steal from many is research.I'm trying to access a USB digital camera under RedHat null Beta2
The Camera information is as follows:
USB Epsilon 1.3 (Digital Dreams) Resolution 1600 x 1280 pixels Image sensor CMOS LCD Screen 1.5" colour TFT Internal memory 8MB NAND Gate Flash External Memory Build in Smart Media card slot Viewfinder Optical Digital zoom X 4 Image capacity (with build in memory) 1600x1200 - 20 1280x1024 - 29 640x480 - 121 White balance Auto/Day/Shade/Bulb/Fl Exposure Auto/Manual Image format JPG, AVI (through software) Computer interface USB Power control Auto off (10 seconds)
I'm running a standard kernel 2.4.19-ac2 with USB Mass Storage degugging Information.and also RedHat's 2.4.18-12.5 (the below messages was taken for the 2.4.19-ac2)
When I plug it in its detected as:
[root@stimpy mark]# usb.c: USB device 2 (vend/prod 0x733/0x1310) is not claimed by any active driver. Vendor: Model: 1.3M DigitalCAM Rev: 1.00 Type: Direct-Access ANSI SCSI revision: 02 Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0 SCSI device sda: 16384 512-byte hdwr sectors (8 MB) sda: test WP failed, assume Write Enabled sda1
Which means that the kernel has seen it and its being treated as a mass Storage device, thus treated as a SCSI device.
So I also ran cdrecord -scanbus and that listed the device as well.
scsibus1: 1,0,0 100) ' ' '1.3M DigitalCAM ' '1.00' Removable Disk
After reading several pages on USB and Mass storage, I have found out how I should be able to access it
The following Kernel modules that are relevant to this device are loaded as below:
vfat 11356 0 (autoclean) fat 36888 0 (autoclean) [vfat] sr_mod 16248 0 (autoclean) usb-storage 102352 0 usb-ohci 19528 0 (unused) usbcore 69888 1 [usb-storage hid usb-ohci] aic7xxx 123444 0 sd_mod 13104 0 scsi_mod 99716 4 [sr_mod usb-storage aic7xxx sd_mod]
The file system on the camera is FAT (this can be accessed by VMware running on this Box, as a removable device (which is running a Virtual WinXp O/S) through the USB port using the drivers for windows supplied by the manufacturer)
mount /dev/sda /mnt/camera
and
/sbin/modprobe fat && mount -t fat /dev/sda /mnt/camera
I've also tried vat, auto, autofs and /dev/sda[0-10] as well.
Also running the following, it cannot access the device either:
[root@stimpy dev]# dd if=/dev/sda of=/dev/null bs=1k count=1 dd: reading `/dev/sda': Input/output error 0+0 records in 0+0 records out
It seems it cannot find a partition table on the device, in WinXp I can happily right click and create folders on the camera, It can also Identify the amount of space on the device 8MB, when first plugged it.
And I have also tried the following as well:
[root@stimpy mark]# cat /dev/sda | file - cat: /dev/sda: Input/output error standard input: empty
Please see below the output of dmesg -n 9, with USB Mass storage debugging turned on (sorry for the large amount)
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hub.c: USB new device connect on bus1/1, assigned device number 2 usb.c: USB device 2 (vend/prod 0x733/0x1310) is not claimed by any active driver. Initializing USB Mass Storage driver... usb.c: registered new driver usb-storage usb-storage: act_altsettting is 0 usb-storage: id_index calculated to be: 85 usb-storage: Array length appears to be: 87 usb-storage: USB Mass Storage device detected usb-storage: Endpoints: In: 0xdb6b0b20 Out: 0xdb6b0b34 Int: 0xdb6b0b48 (Period 1) usb-storage: New GUID 07331310000ffffffffff700 usb-storage: GetMaxLUN command result is 1, data is 0 usb-storage: Transport: Bulk usb-storage: Protocol: Transparent SCSI usb-storage: *** thread sleeping. scsi1 : SCSI emulation for USB Mass Storage devices usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command INQUIRY (6 bytes) usb-storage: 12 00 00 00 ff 00 4f da d4 33 4f da usb-storage: Bulk command S 0x43425355 T 0x8 Trg 0 LUN 0 L 255 F 128 CL 6 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 255 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 36/255 usb-storage: Bulk data transfer result 0x1 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x8 R 219 Stat 0x0 usb-storage: Fixing INQUIRY data to show SCSI rev 2 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. Vendor: Model: 1.3M DigitalCAM Rev: 1.00 Type: Direct-Access ANSI SCSI revision: 02 usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (1/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (2/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (3/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (4/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (5/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (6/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (7/0) usb-storage: *** thread sleeping. Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0 usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command TEST_UNIT_READY (6 bytes) usb-storage: 00 00 00 00 00 00 00 00 00 00 30 da usb-storage: Bulk command S 0x43425355 T 0x10 Trg 0 LUN 0 L 0 F 0 CL 6 usb-storage: Bulk command transfer result=0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x10 R 0 Stat 0x0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command READ_CAPACITY (10 bytes) usb-storage: 25 00 00 00 00 00 00 00 00 00 30 da usb-storage: Bulk command S 0x43425355 T 0x11 Trg 0 LUN 0 L 8 F 128 CL 10 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 8 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 8/8 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: Bulk data transfer result 0x0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x11 R 0 Stat 0x0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. SCSI device sda: 16384 512-byte hdwr sectors (8 MB) usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command MODE_SENSE (6 bytes) usb-storage: 1a 00 3f 00 ff 00 00 00 00 00 30 da usb-storage: Bulk command S 0x43425355 T 0x12 Trg 0 LUN 0 L 255 F 128 CL 6 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 255 bytes usb-storage: usb_stor_bulk_msg() returned -32 xferred 0/255 usb-storage: clearing endpoint halt for pipe 0xc0038280 usb-storage: usb_stor_clear_halt: result=0 usb-storage: usb_stor_transfer_partial(): unknown error usb-storage: Bulk data transfer result 0x2 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x12 R 255 Stat 0x1 usb-storage: -- transport indicates command failure usb-storage: Issuing auto-REQUEST_SENSE usb-storage: Bulk command S 0x43425355 T 0x12 Trg 0 LUN 0 L 18 F 128 CL 6 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 18 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 18/18 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: Bulk data transfer result 0x0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x12 R 0 Stat 0x0 usb-storage: -- Result from auto-sense is 0 usb-storage: -- code: 0x70, key: 0x5, ASC: 0x24, ASCQ: 0x0 usb-storage: Illegal Request: invalid field in CDB usb-storage: scsi cmd done, result=0x2 usb-storage: *** thread sleeping. sda: test WP failed, assume Write Enabled sda:<7>usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command READ_10 (10 bytes) usb-storage: 28 00 00 00 00 00 00 00 08 00 30 da usb-storage: Bulk command S 0x43425355 T 0x13 Trg 0 LUN 0 L 4096 F 128 CL 10 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 4096 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 4096/4096 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: Bulk data transfer result 0x0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x13 R 0 Stat 0x0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. sda1 WARNING: USB Mass Storage data integrity not assured USB Mass Storage device found at 2 USB Mass Storage support registered. Attached scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0 sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray cdrom: This disc doesn't have any tracks I recognize!
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Not being a programmer or kernel developer, I'm not sure where the error lies, Its going to be either a USB device driver bug or the actual camera itself (thus relying on the Windows drivers doing the actual work, rather than properly implementing USB Mass Storage)
After several conversations with the RedHat mailing list, I have not got any closer with regards to finding out where the error actually lies
Can anyone possibly help on this one.
Thanks in advance
Mark
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