>Are you using the usbserial generic driver, or the ipaq driver on top of >that?
The generic driver. Should I test de iPaq driver ? Where may I find it ? >There are some things that can be done to speed up throughput, the visor >driver in 2.6 has increased speed by huge ammount due to some driver >tuning, and a lot of core changes. Do you think that I could test this one too ? Is there any reason to keep the Visor tuning out of the generic one ? If I need to write a dedicated driver by mixing the generic + the tuned part, is there somewhere a piece of doc that would allow me to do that ? Thanks a lot. Franck LEFEVRE -----Message d'origine----- De : Greg KH [mailto:[EMAIL PROTECTED] Envoye : jeudi 24 juillet 2003 17:41 A : Franck LEFEVRE Cc : [EMAIL PROTECTED] Objet : Re: [Linux-usb-users] Slow speed usbserial<->StrongARM PDA On Thu, Jul 24, 2003 at 05:20:24PM +0200, Franck LEFEVRE wrote: > Hi, > > I'm a newbie with usbserial and I'm trying develop a linux software to > update the filesystem (ie. to transfer 30 Mb files) of StrongARM PDA via > USB. > The PDA I'm using now is a Yopy3700. Such a software for MSWindows is > already bundled with the Yopy and is working fine and quickly. > I already developed a piece of code that send the stream to the Yopy. It's > merely working but it is very slow compared to the original (ie. Windows) > version; it's just looking like I was using a real serial link = 10 kbyte/s. > > I tried to modify the link speed and several other paramters by using the > tcsetattr's family functions but nothing is changing. I cannot even reduce > the speed. > > My distrib is a Mandrake 8.1 (Kernel: 2.4.8-29mdk) 2.4.8??? Wow, that's a few years old. Quite a number of USB changes have happened since then. > Installed modules look like: > > Module Size Used by > usbserial 18288 7 > usb-uhci 21232 0 (unused) > usbcore 50752 1 [usbserial usb-uhci] Are you using the usbserial generic driver, or the ipaq driver on top of that? There are some things that can be done to speed up throughput, the visor driver in 2.6 has increased speed by huge ammount due to some driver tuning, and a lot of core changes. thanks, greg k-h ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
