Hi Greg, On Tue, 7 Oct 2003, Greg KH wrote:
> On Tue, Oct 07, 2003 at 08:57:05AM +0100, Ged Haywood wrote: > > > > I think you're treading very new ground here, I don't recall seeing > > any message about ehci on Sparc with Linux 2.6.0. In fact I'm not > > certain that it works well on all x86 platforms yet. > > Oh come on. That's just not true. Don't spred rumors when you do not > have facts. What I said is true. Read it again. Here's a quote taken from http://www.linux-usb.org/usb2.html dated 24 June 2003: "If you're a 2.4 user, use 2.4.22-pre1 or later. That closely matches the Linux 2.6.0-test EHCI code, which seems to resolve the worst problems reported. (VT6202 problems still seem to remain, especially on 2.4 kernels.) Remember this is still classified as 'experimental'." Please don't tell me I don't have facts. I have over a thousand of them in my usb-users mailbox (on which I ran 'grep -i sparc') and I tell it like I see it. Other facts: I've been following the USB users' list for over a year and there has been progress with the development but it has been slow. I offered to help with development but my offer was ignored, and so I offered to help with the documentation. Unfortunately for reasons you don't want to know a few things have not gone well for me recently but I have still managed to keep an eye on the mailing lists and I have a good grasp of the things that confuse potential users - because they have also confused me. My initial plan was to get to a point where I had a reliable USB subsystem so that I could (a) document it and (b) test a lot of new things on it to find, fix and document all sorts of 'user' problems. However this has failed because I have never had a reliable Linux USB subsystem. USB under Linux is well short of the reliability that I expect from a Linux system. In fact I'd expect better from a Windup box. I can't disconnect and then reconnect a USB device from the 2.6.0 Linux box on my desk (and I'm forced to do it by what appears to be faulty drivers) without saying a silent prayer that the OS won't crash. I wouldn't even do that with a 2.4 kernel because there's a high probability that it *would* crash, so I either reboot or run 2.6.0-test5 for USB only. At least now that I'm running beta 2.6.0 kernels Linux hasn't crashed lately, but I *still* have to mess with booting a different kernel, or disconnecting and reconnecting, or mounting and unmounting, which all takes up so much time it makes the whole thing a bit pointless. And a number of drivers (such as for one of my sound cards) are not yet available for the 2.6 kernel which is, to say the least, inconvenient. If I run the same devices through a parallel port, scsi, ide, or even a serial port then it 'just works' and I have none of these problems. Of the half-dozen mailing lists I'm on, problems on the USB users list outnumber the rest put together by a factor of four. Until yesterday I had almost 1700 messages in my usb-users mailbox containing what appear to be discussions about unresolved problem reports. Yesterday, as it happens, I deleted about 600 of them because it was becoming obvious that if I hadn't had time to look at them by now I wasn't going to. At one time they were coming in faster than I could read them, let alone try to understand them, which is why I've lost control of the mailbox. I have the impression that the incoming message rate is slowing, and I wonder if things are working better now with later kernels (that's my experience) or if people are just giving up with it (that's my impression). > Please try to be more careful with your responses. Please also don't tell me to be careful with my responses when you haven't read them carefully yourself. I said I think what I think, I said I don't recall what I don't recall, and I said I'm not certain of what I'm not certain. In fact I'm almost certain of the opposite, and if you check the emails below which I culled quickly from my mailbox you will find a couple of messages about Knoppix and another from Reg about his USB2.0 PCI card which is very similar to my experience. Please don't try to give the impression that everything is hunky-dory in the Linux-USB world when plainly it isn't. 73, Ged. ================================================================================ Date: Thu, 28 Rug 2003 18:48:56 +0200 From: a[dot]gietl[at]e-admin[dot]de To: [EMAIL PROTECTED] Subject: [Linux-usb-users] ehci and mousewheel discovered a weird thing with my usb-mouse and my usb2.0 controller(intel82801DB). [snip] When i use the normal uchi-usb-driver everything works fine, when i use the ehci-driver the mouse works too, but the mouse-wheel does not work. The mouse is a Logitech iFeell MouseMan, kernel-version is 2.4.22. ================================================================================ Date: Sat, 30 Aug 2003 19:08:36 -0400 From: marr[at]shianet[dot]org To: [EMAIL PROTECTED] Subject: Re: [Linux-usb-users] Experiances w/ SanDisk CRUZER Mini 256MB USB Pen drive? > Just bought a SanDisk CRUZER Mini 256MB USB 'pen' drive for $50 > [snip] > Does anyone out there have experiance with this device? I have the same exact SanDisk 'Cruzer Mini' device (Model SDCZ2-256) and have had very good luck with it in Slackware Linux (8.1 and 9.0). [snip] However, when I boot from a Knoppix CD (version 3.2, for x86 hardware), the KDE desktop startup hangs my machine _hard_ [snip] FWIW, I have had somewhat better luck with my 128MB Apacer 'HandyDrive' USB flash drive (using USB 1.1, not the newer ones which use USB 2.x) ================================================================================ Date: Wed, 3 Sep 2003 03:05:47 +0200 (CEST) From: crf[at]sbox[dot]tu-graz[dot]ac[dot]at To: [EMAIL PROTECTED] Subject: [Linux-usb-users] KT266A - still no mouse [snip,snip] 2 months ago: http://marc.theaimsgroup.com/?l=linux-usb-users&m=105719956620544&w=2 still same problem: KT266A based board, USB mouse plays dead meanwhile tested: 2.4.20 .21 .22, latest Knoppix, Gentoo 1.4 with various combinations of with/out apic/acpi (2 mice tested, work ok on different boards) today I tried a minimal RH9 installation the installer actually detected a "3-Button generic USB mouse" but the mouse is still dead ================================================================================ Date: Tue, 9 Sep 2003 11:34:02 +0200 From: cyriac[at]free-unices[dot]org To: [EMAIL PROTECTED] Subject: [Linux-usb-users] Losing USB2.0 when rebooting I've just bought a PCI USB2.0 card (with 2 ports) and an internal USB 2.0 USB hub (Trust). When I install the PCI card, plus the internal and boot my computer, everything works perfectly in USB2.0 with my Archos Jukebox, and in USB1.1 with my gamepad, etc... But when I reboot after the first install, my PCI card and my hub only works in USB1.1, as if the ehci-hcd devices was overtaken by the uhci (or usb-uhci) driver. ================================================================================ Date: Fri, 12 Sep 2003 12:10:17 +0200 From: matthias[dot]luebberstedt[at]ppi[dot]de To: [EMAIL PROTECTED] Subject: [Linux-usb-users] USB 2.0 "Luwen EasyDisk" with kernel 2.4.19 (SuSE 8.1) here is another of the popular "I can't get my USB device to work under Linux" problems. Recently I bought a USB 2.0 flash disk called "EasyDisk" [snip] I also have an older 256 MB USB 1.1 flash disk ("Seitec USB bar") which works like charm under Linux: [snip] I insert the stick, the hotplugging mechanism detects the device, an appropriate line is added to /etc/fstab automagically and I can swiftly mount the flash disk. But when I insert the USB 2.0 flash disk, although the device is obviously detected by the hotplugging mechanism (usually as /dev/sda), but no line is added to /etc/fstab and manually mounting the device /as well es /dev/sda[1-4] gives an error message stating that eiter the fstype is wrong or the "super block" of the device is broken. [snip] ================================================================================ Date: Tue, 30 Sep 2003 11:33:38 -0600 From: reg[at]dwf[dot]com Cc: <[EMAIL PROTECTED]> Subject: Re: [Linux-usb-users] USB 2 card rec > It should, although VIA is one of the ones that has had some issues more > than others. These things are basically free these days in Fry's though so > I'd not worry too much. I think it is mainly the VIA USB built into > motherboards that have these issues, I don't recall anyone having a > problem with a PCI card. Id have to disagree with that the PCI card part). I bought a USB 2.0 card a couple of months ago to get a better transfer rate to the USB disk I use to move things from home to office. The disk works fine with the USB 1 ports on this machine but is just SLOW for large transfers. It works REALLY FAST with the 2.0 ports on my machine at the office. However, I have yet to build a Linux kernel that would support this 2.0 card. They all run it in 1.0 mode just find, but none of them turn on the 2.0 capabilities.... So, dont get your hopes up too far. I think USB, and particularly USB2.0 still qualify as experimental (mabe you get it, mabe you dont) in Linux... ================================================================================ ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
