<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div>Hello,</div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;">I have a CANON Pixma 510, am I am trying to use libsane.</div><div style="color: rgb(0, 0, 0); font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;">I would like to use the automatic document feeder to aquire automatically all the documents available. I have tried several way and I have found problem with all of them to detect that there is no more document in the document feeder.</div><div style="font-size: 13px; font-family: monospace; background-color:
transparent; font-style: normal;"><br></div><div style="font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;">- sane_start or sane_read never returns SANE_STATUS_NO_DOCS<span style="color: rgb(0, 0, 0);"><a href="" name="i99"><tt></tt></a></span></div><div style="font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;">-in synchrone mode, sane_read is blocked, and if I call sane_cancel from another thread, this call is also definitly blocked</div><div style="font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;">-The asynchrone mode doen't seem to work. If I call sane_read when a document is available, it returns immediatly but read len =0</div><div style="font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;"><br></div><div style="font-size: 13px; font-family: monospace; background-color: transparent;
font-style: normal;">Do you have other suggestions? Or do you think that there is problems with the PIXMA implementation?</div><div style="font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;"><br></div><div style="font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;">Thank you <br></div><div style="font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;">Sebastien</div><div style="color: rgb(0, 0, 255); font-size: 13px; font-family: monospace; background-color: transparent; font-style: normal;"><br></div></div></body></html>