[sane-devel] microtek scanmaker 4900 - update
m. allan noah
kitno455 at gmail.com
Sun Nov 25 19:21:21 UTC 2007
On 11/25/07, Adam Sulmicki <sulmicki at gmail.com> wrote:
> at this point I'm fairly certain that this scanner uses SQ SCAN11 chip.
> Since no sane scanner at this point support this chip, I guess it makes the
> case pretty hopeless.
> data so far :
> NAME: "Microtek ScanMaker 4900" aka "USB2400 Scanner" aka "D9"
> TYPE: MRS-2400L48U
> USB ID: 05da:30d9
> Circuit Board :
> LYNX-0110 REV-A(20301)
> the ram chip :
> EliteMT M11L416256SA-35J DZC2HBP50 0208
> the big chip (U2) :
> MII S11 A212-0400 E2M11
> at this point I believe that those chips are equivalent : MII S11 aka SCAN11
> aka SQ11
> * Plug in USB2.0/ Embedded USB1.1
> * IEEE1394
> * Motor PWM
> * 16 bits 30M A/D
it's never completely hopeless, you can get a trace of the windows
driver in action, and reverse engineer the protocol. its just a
question of how much time you want to spend, and how much C-fu you
have. generally, the cheaper the scanner, the more difficult the
driver is to write.
"The truth is an offense, but not a sin"
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