Hello,<br><br><div class="gmail_quote">2010/8/20 Alejandro Imass <span dir="ltr"><<a href="mailto:aimass@p2ee.org">aimass@p2ee.org</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi,<br>
<br>
I would like to know the current support for the several HP ADF<br>
scanners that share the common chipset. From what I could see, it<br>
seems that the hp3900 series driver should support most if not all HP<br>
scanners based on the RT58822 chipset. Nevertheless, I don't have<br>
enough scanner skills to actually confirm this.<br></blockquote><div><br>hp3900 focuses on RTS8822 and derivates. I don't know if RT58822 is just<br>a mistake or another chipset.<br><br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Here are the scanners we would need support for:<br>
8290, 8350, 8390, 8420, 7800<br></blockquote><div> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
I think our team has confirmed that all except for the 7800 share the<br>
same chipset. We can't confirm the 7800 because we haven't had access<br>
to it yet, but we will next week.<br></blockquote><div><br> All scanners I've tested using RTS882x don't provide ADF functionality so I didn't<br>recognize any related register and hp3900 doesn't support it.<br>
</div><div> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Question: Is adding support for these as simple as adding their<br>
hardware ids to the lists in hp3900.xxx ? What else should we be aware<br>
of?<br>
<br></blockquote><br></div>hp3900 backend has extended options to test device's behavior using known<br>settings from recognized chipsets but this chipset is a bit complex needing<br>many data to be programmed (such as lamp settings, sensor type, sensor clocks,<br>
motor steps depending on supported resolutions and so on). The idea is analyze <br>windows' driver to extract all necessary data that may be different in each scanner<br>model. That may take some time.<br><br><br>Jonathan Bravo Lopez<br>
<br>