[sane-devel] Fwd: umax1220u: sane_start: Invalid argument

[m. allan noah]

forward to list as well, sorry Dr R....

---------- Forwarded message ----------
From: m. allan noah <kitno455 at gmail.com>
Date: Thu, Dec 18, 2008 at 8:37 AM
Subject: Re: [sane-devel] umax1220u: sane_start: Invalid argument
To: "D. Hugh Redelmeier" <hugh at mimosa.com>


On Wed, Dec 17, 2008 at 10:23 PM, D. Hugh Redelmeier <hugh at mimosa.com> wrote:
> | From: m. allan noah <kitno455 at gmail.com>
>
> | You could try to get a debug log of the backend in operation:
> |
> | SANE_DEBUG_UMAX1220U=255 scanimage 2>error.log
>
> Thanks.  That seems to give useful information.  Not that I know how
> to interpet it.
>
> Near the end, just before the error message, the
> UMAX_set_scan_parameters don't look reasonable to me.  Are the
> resolutions DPI?  If so, they seem low.  Is it OK to have so many of
> the other parameters 0?

<snip>

> [umax1220u] sane_start
> [umax1220u] UMAX_set_scan_parameters:
> [umax1220u] color = 1
> [umax1220u] xo    = 0, yo     = 0
> [umax1220u] w     = 0, h      = 0
> [umax1220u] xres  = 75, yres   = 75
> [umax1220u] left  = 0, top    = 0
> [umax1220u] right = 0, bottom = 0
> scanimage: sane_start: Invalid argument
> [umax1220u] sane_cancel: handle = 0x692080
> [umax1220u] sane_cancel: canceling is unsupported in this backend
> [umax1220u] sane_close
> [umax1220u] UMAX_close_device:
> [umax1220u] sane_exit
>

yes- it appears odd that all of those values are 0. what is the output of

scanimage --help

allan
--
"The truth is an offense, but not a sin"



-- 
"The truth is an offense, but not a sin"