Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jul 12 2004, Alan Stern wrote: > I forgot to ask before... It would be useful if you could post the > contents of /proc/bus/usb/devices with your drive plugged in. Looking > through my old email records I don't find any copies of it. Ok, I don't remember if I sent it to you or not, either. So

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Fri, 9 Jul 2004, Rogério Brito wrote: > Now, I compiled the kernel with the array of size 8 instead of 64 and > everything seems to be working fine. Thanks. Does this mean that this newer > version (or something inspired in it) may be included in newer kernels? > It is nice to save a few bytes

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jul 09 2004, Alan Stern wrote: > On Thu, 8 Jul 2004, Rogério Brito wrote: > > I still haven't compiled the kernel with the 8 in the place of the 64, > > though. > > That will be the real test. But as long as actual_length <= 8, it should > work okay. Now, I compiled the kernel with the array

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 8 Jul 2004, Rogério Brito wrote: > Well, I think that these are some good news: it printed that the actual > length was 8, as you can see below. > > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > (...) > usb 1-1.1: new full speed USB device using address 3 > u

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jul 08 2004, Alan Stern wrote: > On Thu, 8 Jul 2004, Rogério Brito wrote: > > I will try anyway to put that if right after the "case 0:" clause. > > Yes, please do. The output from the printk inside the "if" statement is > all that matters. Well, I think that these are some good news: it prin

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 8 Jul 2004, Rogério Brito wrote: > Well, the patch doesn't apply here cleanly with kernel 2.6.7. Here is what > I have around the line where the patch you just sent me should be applied: > > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > default:

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Hi, Alan. Thank you very much for your prompt reply. On Jul 08 2004, Alan Stern wrote: > On Thu, 8 Jul 2004, Rogério Brito wrote: > > Dear Alan Stern, > > > > Ealier this year, we exchanged some messages regarding a problem that I had > > with my USB Drive, which didn't work correctly with my VI

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 8 Jul 2004, Rogério Brito wrote: > Dear Alan Stern, > > Ealier this year, we exchanged some messages regarding a problem that I had > with my USB Drive, which didn't work correctly with my VIA southbridge. In > the message quoted below, you advised me to use a patch for my future > kernel

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Dear Alan Stern, Ealier this year, we exchanged some messages regarding a problem that I had with my USB Drive, which didn't work correctly with my VIA southbridge. In the message quoted below, you advised me to use a patch for my future kernels and that's precisely what I'm doing right now. With

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 4 Feb 2004, David Brownell wrote: > Because they use a regular FIFO with bits allowing each word to have > an end-of-packet bit ... 1 KByte of buffer can handle a variable number > of packets. (And the 2 KByte/endpoint mode is important when streaming > high bandwidth packets, with fast-

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 5 Feb 2004, Martin Diehl wrote: > > I can see two possible difficulties. One is that the driver may have been > > handed a transfer buffer that is not guaranteed to be long enough to hold > > an entire maximum-size packet; the driver would have to allocate a bounce > > buffer and that

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 4 Feb 2004, Alan Stern wrote: > > hub 1-2:1.0: int length 8 > > This says that the internal hub sent back an 8-byte response to a status > query when it was only supposed to send back 1 byte. So, a bug in the > internal hub. This caused the VIA USB controller to stop dead in its > tr

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Martin Diehl wrote: Not necessarily. Off-by-one style bugs happen all the time, and if that didn't pad out the whole packet, it's always possible to recover gracefully by issuing the "biggest possible short read". But if you lost the transfer boundary -- you may never be able to recover it witho

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Martin Diehl wrote: On Wed, 4 Feb 2004, David Brownell wrote: BTW, I think it would be a good idea for all IN urb to round the requested transfer_length up to the next multiple of maxpacket size. ... I tend to agree with a generalization: make that all READs. On the host side that's IN transfer

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 4 Feb 2004, David Brownell wrote: > > It's not clear whether this should include control transfers. Presumably > > they use different mechanisms within device controllers, and anyway they > > do contain a length field. > > The device controllers I've seen use the same mechanism. Control

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 4 Feb 2004, David Brownell wrote: > >>BTW, I think it would be a good idea for all IN urb to round the requested > >>transfer_length up to the next multiple of maxpacket size. Always, for all > >>drivers - except if the protocol explicitly requires treating SPD as error. > > > > > > I t

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 4 Feb 2004, Alan Stern wrote: > On Wed, 4 Feb 2004, Martin Diehl wrote: > > > BTW, I think it would be a good idea for all IN urb to round the requested > > transfer_length up to the next multiple of maxpacket size. Always, for all > > drivers - except if the protocol explicitly requires

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Alan Stern wrote: BTW, I think it would be a good idea for all IN urb to round the requested transfer_length up to the next multiple of maxpacket size. Always, for all drivers - except if the protocol explicitly requires treating SPD as error. I tend to agree, with some reservations. I tend to

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 4 Feb 2004, David Brownell wrote: > Alan Stern wrote: > > On Wed, 4 Feb 2004, Martin Diehl wrote: > > > > > >>BTW, I think it would be a good idea for all IN urb to round the requested > >>transfer_length up to the next multiple of maxpacket size. Always, for all > >>drivers - except if

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Alan Stern wrote: On Wed, 4 Feb 2004, Martin Diehl wrote: BTW, I think it would be a good idea for all IN urb to round the requested transfer_length up to the next multiple of maxpacket size. Always, for all drivers - except if the protocol explicitly requires treating SPD as error. I tend to

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 4 Feb 2004, Martin Diehl wrote: > BTW, I think it would be a good idea for all IN urb to round the requested > transfer_length up to the next multiple of maxpacket size. Always, for all > drivers - except if the protocol explicitly requires treating SPD as error. I tend to agree, with so

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 4 Feb 2004, Rogério Brito wrote: > Hi, Alan. > > Here I am again. And concerning your question, here are the relevant > lines from the output of lspci from my Desktop (which indeed has a VIA > Southbridge): > > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > 00:

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Feb 03 2004, Alan Stern wrote: > I just came across some new information that might be relevant for your > problem. Do you remember if your desktop system uses a USB controller by > VIA? If it does, that would explain a lot. (...) Hi, Alan. Here I am again. And concerning your question, he

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Feb 03 2004, Alan Stern wrote: > Rogério: > > I just came across some new information that might be relevant for > your problem. Do you remember if your desktop system uses a USB > controller by VIA? If it does, that would explain a lot. VIA > controllers have a bug that causes them to shut

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Tue, 3 Feb 2004, Rogério Brito wrote: > > It enlarges the size of the packets the system asks for; maybe that > > will prevent the controller from shutting down. > > BTW, not that it matters for me (since I know nothing about the details > of USB and have never programmed for low level devices

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Rogério: I just came across some new information that might be relevant for your problem. Do you remember if your desktop system uses a USB controller by VIA? If it does, that would explain a lot. VIA controllers have a bug that causes them to shut down when they receive a packet that's too

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jan 27 2004, Alan Stern wrote: > It all looks pretty much okay. I don't know what those errors at the > very end are, though... Ok. While they look scary, it seems that they don't cause me problems, apart from spamming my logs. > > Even if my systems use /dev/input/mouse? I'm using Debian tes

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jan 23 2004, Alan Stern wrote: > Here's another patch. This one makes the driver behave even more like > Windows, because it doesn't do the status polling during the debounce > period. In fact, it doesn't do status polling at all for your internal > hub, which makes it unsuited for general use

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Tue, 27 Jan 2004, Rogério Brito wrote: > Ok. This time, for lack of time (but for anxiously awaiting to sending > you a feedback), I only tested via warm boots. The logs are listed > below. It all looks pretty much okay. I don't know what those errors at the very end are, though... > [Probl

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Fri, 23 Jan 2004, Rogério Brito wrote: > > Also, don't worry for now about what happens after you unplug the drive. > > I'm more interested in the part where you first plug it in. > > Ok. I just plugged and replugged it in the hope that it would be > identified after replugging. That's not

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jan 26 2004, Alan Stern wrote: > On Fri, 23 Jan 2004, Rogério Brito wrote: > > I think that the probability of this being just sheer luck is so low, > > given the probability of success of it working that I can say that now I > > think that it is working for good with your newest patch. :-) >

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Fri, 23 Jan 2004, Rogério Brito wrote: > Yes! It seems that this time you hit the nail in the head. I booted my > system (7 boots in a row, both cold and warm boots) with the new patch > applied and, for each boot, I plugged the drive and it was promptly > recognized after I loaded uhci-hcd and

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jan 22 2004, Alan Stern wrote: > I'm not sure if it's significant either, but I agree that starting from a > cold boot is a good idea. Ok. I'm now adopting the idea of always cold booting my system. > Also, don't worry for now about what happens after you unplug the drive. > I'm more intere

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 22 Jan 2004, Rogério Brito wrote: > Hi, Alan. > > I have some more information about the problem. I tried generating dmesg > logs from both a cold boot and a warm boot to see if things were > different and they were. I don't know if this information is significant > or not. Please feel fr

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Hi, Alan. I have some more information about the problem. I tried generating dmesg logs from both a cold boot and a warm boot to see if things were different and they were. I don't know if this information is significant or not. Please feel free to guide me however you want. First, simply having

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jan 21 2004, Alan Stern wrote: > This is weird. The internal hub is failing at a different place at > different times. You can see it if you compare this log to your previous > one. This one failed right after the "enabling power on all ports" > message, but before it got past that point.

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 21 Jan 2004, Rogério Brito wrote: > Attached is the edited dmesg of that patch. I hope that I have not cut > any essential information. I tried to indicate clearly what I did there > (I have the hotplug scripts disabled, as you advised). This is weird. The internal hub is failing at a di

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Jan 20 2004, Alan Stern wrote: > Here Rogério, try this patch. It adds a few more diagnostic messages. I > think the problem occurs at the point where the system tries to reset one > of the ports belonging to the internal hub. This should help make sure of > that. Hi, Alan. Attached is t

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Here Rogério, try this patch. It adds a few more diagnostic messages. I think the problem occurs at the point where the system tries to reset one of the ports belonging to the internal hub. This should help make sure of that. Alan Stern --- 2.6/drivers/usb/core/hub.c.orig Tue Jan 20 16

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Sat, 17 Jan 2004, Rogério Brito wrote: > Hi, Alan. > > I'm back and I'm trying to follow your directions to the letter. I > turned hotplugging completely, but kept the "echo 4" part. Good. > I tried to cut down the logs to what I thought was a safe minimum. If > you don't need some of the li

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Dec 31 2003, Alan Stern wrote: > On Tue, 30 Dec 2003, Rogério Brito wrote: > > Ok, I'll keep doing it if it does no harm, but I'll stop if you tell me > > to. > > The "echo 4..." is okay. But hotplugging may complicate things a little > bit. I'd turn that off. Hi, Alan. I'm back and I'm try

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Tue, 30 Dec 2003, Rogério Brito wrote: > Ok, I tried the patch that you sent me. Since you said "instead", I > removed the earlier patch before applying the current one. Good. > BTW, there was one tiny little problem which I was able to solve: the > function deb_dbg that you used in the new p

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Dec 30 2003, Alan Stern wrote: > Don't get too excited! It may take a while to get this working. It > doesn't seem to be an easy problem. Ok. I thought that you had solved it already and were looking for a minimal solution to the problem. > Well, the problem didn't occur where I first though

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Mon, 29 Dec 2003, Rogério Brito wrote: > Hi, Alan. > > Thank you very much for your feedback. I'm now excited that maybe I will > finally be able to use my USB drive with my computer to carry some > documents to my workplace! Don't get too excited! It may take a while to get this working. I

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Hi, Alan. Thank you very much for your feedback. I'm now excited that maybe I will finally be able to use my USB drive with my computer to carry some documents to my workplace! On Dec 28 2003, Alan Stern wrote: > From the log you collected, it's clear that Windows initializes each > port of your

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Rogério: >From the log you collected, it's clear that Windows initializes each port of your internal hub twice! Don't ask me why. Maybe that's what the Linux driver needs to do. Anyway, let's start off small. Here's a diagnostic patch for you to try. This won't fix anything, but it will prin

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Mon, 22 Dec 2003, Rogério Brito wrote: > On Dec 11 2003, Rogério Brito wrote: > > Ok, I grabbed this program and installed it (I think that I got that > > part right), but holy $DEITY, it generates *huge* amounts of logging! > > > > I put a (bzip2) compressed copy of the log at my homepage: >

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Dec 11 2003, Rogério Brito wrote: > Ok, I grabbed this program and installed it (I think that I got that > part right), but holy $DEITY, it generates *huge* amounts of logging! > > I put a (bzip2) compressed copy of the log at my homepage: >

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 11 Dec 2003, Rogério Brito wrote: > Ok, I grabbed this program and installed it (I think that I got that > part right), but holy $DEITY, it generates *huge* amounts of logging! Yes it does! Fortunately only the part near the beginning is important. > I put a (bzip2) compressed copy of t

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Dec 11 2003, Alan Stern wrote: > That's very good. There's a USB logging program called USB-Snoopy. I > have tried using it under Windows 2000 and it works (it doesn't work under > XP). It's freely available from > > http://www.wingmanteam.com/usbsnoopy/ Ok, I grabbed this program and insta

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 10 Dec 2003, Rogério Brito wrote: > Some other points that I don't remember if I told you: in my old > notebook, I can plug the drive and unplug it as many times as I please > and it is always recognized. > > With my desktop, the situation is quite a bit different: in those rare > circums

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 11 Dec 2003, Rogério Brito wrote: > Well, the fact that it sometimes works and sometimes doesn't can be > indicative that there's a race condition somewhere, right? Not necessarily. It could easily be a hardware issue. > I don't remember if I mentioned this, but this device is actually

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Dec 09 2003, Alan Stern wrote: > On Tue, 9 Dec 2003, Rogério Brito wrote: > > I put new dmesgs at http://www.ime.usp.br/~rbrito/usb-new/, if you > > are interested in seeing how things went this time. > > They look just the same as before. > > I'm stumped. The fact that sometimes it works sugg

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Dec 09 2003, Alan Stern wrote: > On Tue, 9 Dec 2003, Rogério Brito wrote: > > I put new dmesgs at http://www.ime.usp.br/~rbrito/usb-new/, if you are > > interested in seeing how things went this time. > > I'm stumped. The fact that sometimes it works suggests that it's a > hardware incompatibil

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Tue, 9 Dec 2003, Rogério Brito wrote: > Hi, Alan. Thank you for your patch. > > Unfortunately, it seems that the patch still doesn't work. Just as you > know what I did, I uninstalled the hotplug scripts, booted into single > user mode, loaded the module uhci-hcd, issued the command > "echo 4

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Dec 09 2003, Alan Stern wrote: > Rogério: > > This quick patch will add a 1-second delay between powering up the > ports on your internal hub. Try it out on your desktop computer and > post the debugging log so we can see what happens. Hi, Alan. Thank you for your patch. Unfortunately, it se

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Rogério: This quick patch will add a 1-second delay between powering up the ports on your internal hub. Try it out on your desktop computer and post the debugging log so we can see what happens. Alan Stern --- 2.6/drivers/usb/core/hub.c.orig Mon Sep 22 12:37:50 2003 +++ 2.6/drivers/usb/core/h

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 26 Nov 2003, Rogério Brito wrote: > On Nov 21 2003, Alan Stern wrote: > > On Thu, 20 Nov 2003, Rogério Brito wrote: > > > OTOH, I compiled a 2.6.0-test9 kernel for my old notebook (a Compaq > > > Armada V300) and for this notebook, the drive works. The appropriate > > > dmesgs are also inc

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

First of all, sorry for the lag of my messages. My personal problems didn't end as soon as I expected. I now think that I can send the needed information much faster. Sorry for this. On Nov 21 2003, Alan Stern wrote: > On Thu, 20 Nov 2003, Rogério Brito wrote: > > OTOH, I compiled a 2.6.0-test9

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 20 Nov 2003, Rogério Brito wrote: > I am using kernel 2.6.0-test9, just as a reminder. > > I did the following steps and for most of those steps, I put the > accompanying dmesg on my site : > > 1 - booted without any device plugged; > 2 - did "modprobe

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Nov 14 2003, Alan Stern wrote: > On Thu, 13 Nov 2003, Rogério Brito wrote: > > > Yes, thinking more about the problem, that seems to be the case. David > > Brownell already told me that. > > > > I sent him an e-mail telling what I see when I modify my > > /etc/hotplug/usb.rc script to contain

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

Alan Stern wrote: On Thu, 13 Nov 2003, Rogério Brito wrote: Yes, thinking more about the problem, that seems to be the case. David Brownell already told me that. I sent him an e-mail telling what I see when I modify my /etc/hotplug/usb.rc script to contain "modprobe -q uhci-hcd debug=2". He never

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Thu, 13 Nov 2003, Rogério Brito wrote: > Yes, thinking more about the problem, that seems to be the case. David > Brownell already told me that. > > I sent him an e-mail telling what I see when I modify my > /etc/hotplug/usb.rc script to contain "modprobe -q uhci-hcd debug=2". An alternative

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Nov 13 2003, Rogério Brito wrote: > For the time being, I put new files at http://www.ime.usp.br/~rbrito/usb > for the situation without any USB devices plugged after a warm boot. I > hope that they're more helpful than the files I posted before. Well, I just tried plugging the drive into one o

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Nov 13 2003, Alan Stern wrote: > On Wed, 12 Nov 2003, Rogério Brito wrote: > > One week ago, I reported problems with my USB Drive (a Leading Driver > > UD-11), when trying to use it with Linux. (...) > > The dmesg files you included and posted don't contain much useful > information relating

Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive

On Wed, 12 Nov 2003, Rogério Brito wrote: > > Dear developers and other users, > > One week ago, I reported problems with my USB Drive (a Leading Driver > UD-11), when trying to use it with Linux. > > The problems still persist after many different kernel releases, using > both kernels from the

[linux-usb-devel] [BUG] Still having problems with an USB Drive

Dear developers and other users, One week ago, I reported problems with my USB Drive (a Leading Driver UD-11), when trying to use it with Linux. The problems still persist after many different kernel releases, using both kernels from the 2.4 and the 2.6 series. Unfortunately, it seems that my m