Dear Dan,
Thanks for your advice, I will try it and will report my finding for you if
I got. : )
-Sam
----- Original Message -----
From: "Daniel Blueman" <[EMAIL PROTECTED]>
To: "Sam J.C. Lu" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Thursday, November 13, 2003 12:15 AM
Subject: Re: Fw: [linux-usb-devel] [2.6.0-test2-bk5] OHCI USB printing
causing system lockup...
> Sam,
>
> Can you reproduce this on 2.4.22 or similar? There have been so many
changes
> and fixes since 2.4.18.
>
> There probably isn't any official documentation describing these drivers,
> but you can take a look in the 'Documentation' directory in a recent linux
> kernel tree - it may well have some good (and more general) USB driver
> information.
>
> Dan
>
> > Hi Dan,
> >
> > Thanks for your advice. :)
> > Did you know Chinese?
> >
> > My system was an embeded system using Admtek 5120P CPU, and running on
> > linux
> > kernel 2.4.18
> > the CPU built-in a USB controler.
> >
> > form you advice, I found the code at printer.c. but I don't have any
idea
> > abut usblp_bulk even the error code.
> > did you have any idea why my system happen this error?
> >
> > PS:
> > Since I am a freshman on linux system, is there any document describe
usb
> > driver and usblp driver?
> >
> > Thanks for your kindly help.
> >
> >
> > -Sam
> >
> >
> >
> > ----- Original Message -----
> > From: "Daniel Blueman" <[EMAIL PROTECTED]>
> > To: "sam" <[EMAIL PROTECTED]>
> > Sent: Wednesday, November 12, 2003 10:55 PM
> > Subject: Re: [linux-usb-devel] [2.6.0-test2-bk5] OHCI USB printing
causing
> > system lockup...
> >
> >
> > > Ni hao ma Sam,
> > >
> > > The return code of -145 corresponds in the USB subsystem to:
> > >
> > > $ find /usr/src/linux -name *.h -exec grep -h 'define.*145' {} \;
> > > [snip]
> > > #define ETIMEDOUT 145 /* Connection timed out */
> > >
> > > >From this code:
> > >
> > > /*
> > > * URB callback.
> > > */
> > >
> > > static void usblp_bulk(struct urb *urb)
> > > {
> > > struct usblp *usblp = urb->context;
> > >
> > > if (!usblp || !usblp->dev || !usblp->used)
> > > return;
> > >
> > > if (urb->status)
> > > warn("usblp%d: nonzero read/write bulk status received: %d",
> > > usblp->minor, urb->status);
> > >
> > > wake_up_interruptible(&usblp->wait);
> > > }
> > >
> > > What kernel version are you running, and what USB hardware do you
have?
> > >
> > > Dan
> > >
> > > PS You'll get far better response posting to the linux-usb mailing
list
> > >
> > > > Dear Sir,
> > > >
> > > > I found a Messages from google to know you,
> > > > as the subject, I met a problem while I try to print
> > > > a job to usb printer. I got a error message after the
> > > > job printing a while and the system lockup.
> > > >
> > > > The error message was:
> > > >
> > > > " printer.c: usblp0: nonzero read/write bulk status received: -145
"
> > > >
> > > > >from your message, you seem met the same problem, did you have
> > > > any idea about this error ?
> > > >
> > > > any advice ia appreciate.
> > > >
> > > > Sam J.C. Lu
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > > --
> > > Daniel J Blueman
> > >
> > > NEU F�R ALLE - GMX MediaCenter - f�r Fotos, Musik, Dateien...
> > > Fotoalbum, File Sharing, MMS, Multimedia-Gru�, GMX FotoService
> > >
> > > Jetzt kostenlos anmelden unter http://www.gmx.net
> > >
> > > +++ GMX - die erste Adresse f�r Mail, Message, More! +++
> >
>
> --
> Daniel J Blueman
>
> NEU F�R ALLE - GMX MediaCenter - f�r Fotos, Musik, Dateien...
> Fotoalbum, File Sharing, MMS, Multimedia-Gru�, GMX FotoService
>
> Jetzt kostenlos anmelden unter http://www.gmx.net
>
> +++ GMX - die erste Adresse f�r Mail, Message, More! +++
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