[sane-devel] Canon LiDE 80 (2nd try)

[Stefan Lucke]

On Tuesday 05 February 2008, Stefan Lucke wrote:
> Hi,
> 
> I've seen there is some progress on lide 90 and I want to step in and
> like to ask if there could be done something for my LiDE 80 too.
> I cloned the canon_lide_60_model entry
> 
> -- scanimage with debug messages : --
> [sanei_debug] Setting debug level of genesys to 255.
> [genesys] SANE Genesys backend version 1.0 build 9 from sane-backends 1.0.18-cvs
> [genesys] sane_init: authorize != null
> [genesys] sane_init: little endian machine
> [genesys] sane_init: reading config file `genesys.conf'
> [genesys] sane_init: config file line 1: trying to attach `usb 0x04a9 0x2214'
..
> [genesys_gl841] gl841_bulk_write_register (elems = 104)
> [genesys_gl841] reg[0x01] = 0xa0
> [genesys_gl841] reg[0x02] = 0x38
> [genesys_gl841] reg[0x03] = 0x5f
> [genesys_gl841] reg[0x04] = 0x10
> [genesys_gl841] reg[0x05] = 0x40
> [genesys_gl841] reg[0x06] = 0x18
> 
> -- I modified this, debug message is written before ..bulk_write..() . --
> 
> [genesys_gl841] gl841_bulk_write_register: failed while writing command: Invalid argument
> scanimage: open of device genesys:libusb:001:017 failed: Invalid argument
> [genesys] sane_exit: start
> [genesys] sane_exit: exit

Some further info:
I placed some win98 logfiles at http://lucke.in-berlin.de/lide-80/ .

During my search in the list history, I found a test program in this mail:
http://lists.alioth.debian.org/pipermail/sane-devel/2006-October/017930.html

Using the following stripped down version of usbsnoop-300dpi_color.c,
helped to get rid of the sudden disconnect from below.
-- snip --
set_write_register(0x6b, 0x0c);
set_write_register(0x06, 0x10);
-- snip --

Both lines are required!
(Note: disconnect has timestamp earlier than USBDEVFS message).

Even with turned off LED and some motor sound (movement in the wrong
direction ??), scanimage produced some pnm files.

To be continued, but I really need some help, as I've no idea 
about scanner hardware.

> 
> -- dmesg output (kernel 2.6.23.13): --
> [ 5298.424302] usb 1-7: new high speed USB device using ehci_hcd and address 17
> [ 5298.480244] usb 1-7: OK: device descriptor read/64, error 0, mp 64 (0 0)
> [ 5298.491202] usb 1-7: configuration #1 chosen from 1 choice
> [ 5312.035169] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd scanimage rqt 64 rq 4 len 2 ret -71
> [ 5312.035148] usb 1-7: USB disconnect, address 17
> [ 5312.188163] usb 1-7: new high speed USB device using ehci_hcd and address 18
> [ 5312.244105] usb 1-7: OK: device descriptor read/64, error 0, mp 64 (0 0)
> [ 5312.255079] usb 1-7: configuration #1 chosen from 1 choice

-- 
Stefan Lucke