Some time after 2.6.0-test1, and current Linus CVS, attempts to use pppd with my Alcatel Speedtouch USB modem fail. Greg KH suggested to me this was a ppp problem; however it does not seem so, as they only patches to any ppp code is in ppp_async, which isn't even loaded on my system.
The user-space driver is attempting to read from the device, and apparently failing on its first attempt with an -EPIPE. The previous run of "modem_run" seems to succeed though. I see several patches to endpoint handling etc. in USB over the relevant period, perhaps related ? Relevant messages (with USB_DEBUG tuirned on) : Aug 19 02:04:14 lambent kernel: drivers/usb/core/usb.c: registered new driver usbfs Aug 19 02:04:14 lambent kernel: drivers/usb/core/usb.c: registered new driver hub Aug 19 02:04:14 lambent kernel: drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver v2.1 Aug 19 02:04:14 lambent kernel: PCI: Found IRQ 9 for device 0000:00:1f.2 Aug 19 02:04:14 lambent kernel: uhci-hcd 0000:00:1f.2: UHCI Host Controller Aug 19 02:04:14 lambent kernel: uhci-hcd 0000:00:1f.2: irq 9, io base 0000b000 Aug 19 02:04:14 lambent kernel: uhci-hcd 0000:00:1f.2: new USB bus registered, assigned bus number 1 Aug 19 02:04:14 lambent kernel: drivers/usb/host/uhci-hcd.c: detected 2 ports Aug 19 02:04:14 lambent kernel: usb usb1: Product: UHCI Host Controller Aug 19 02:04:14 lambent kernel: usb usb1: Manufacturer: Linux 2.6.0-test3 uhci-hcd Aug 19 02:04:14 lambent kernel: usb usb1: SerialNumber: 0000:00:1f.2 Aug 19 02:04:14 lambent kernel: hub 1-0:0: USB hub found Aug 19 02:04:14 lambent kernel: hub 1-0:0: 2 ports detected Aug 19 02:04:14 lambent kernel: PCI: Assigned IRQ 5 for device 0000:00:1f.4 Aug 19 02:04:14 lambent kernel: uhci-hcd 0000:00:1f.4: UHCI Host Controller Aug 19 02:04:14 lambent kernel: uhci-hcd 0000:00:1f.4: irq 5, io base 0000b400 Aug 19 02:04:14 lambent kernel: uhci-hcd 0000:00:1f.4: new USB bus registered, assigned bus number 2 Aug 19 02:04:14 lambent kernel: drivers/usb/host/uhci-hcd.c: detected 2 ports Aug 19 02:04:14 lambent kernel: usb usb2: Product: UHCI Host Controller Aug 19 02:04:14 lambent kernel: usb usb2: Manufacturer: Linux 2.6.0-test3 uhci-hcd Aug 19 02:04:14 lambent kernel: usb usb2: SerialNumber: 0000:00:1f.4 Aug 19 02:04:14 lambent kernel: hub 2-0:0: USB hub found Aug 19 02:04:14 lambent kernel: hub 2-0:0: 2 ports detected Aug 19 02:04:15 lambent kernel: hub 1-0:0: debounce: port 2: delay 100ms stable 4 status 0x101 Aug 19 02:04:15 lambent kernel: hub 1-0:0: new USB device on port 2, assigned address 2 Aug 19 02:04:15 lambent kernel: usb 1-2: Product: Speed Touch USB Aug 19 02:04:15 lambent kernel: usb 1-2: Manufacturer: ALCATEL Aug 19 02:04:15 lambent kernel: usb 1-2: SerialNumber: 0090D044FDCE Aug 19 02:04:39 lambent kernel: usb 1-2: control timeout on ep0in Aug 19 02:04:46 lambent last message repeated 2 times Aug 19 02:05:03 lambent pppd[553]: pppd 2.4.1 started by root, uid 0 I don't remember seeing the "control timeout" before. The debounce has been happening for several kernel releases, but previously worked anyway. /proc/bus/usb/devices : T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.0-test1 uhci-hcd S: Product=Intel Corp. 82801BA/BAM USB (Hub S: SerialNumber=0000:00:1f.4 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.0-test1 uhci-hcd S: Product=Intel Corp. 82801BA/BAM USB (Hub S: SerialNumber=0000:00:1f.2 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=06b9 ProdID=4061 Rev= 0.00 S: Manufacturer=ALCATEL S: Product=Speed Touch USB S: SerialNumber=0090D044FDCE C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=usbfs E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=50ms I: If#= 1 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=00 Prot=00 Driver=usbfs I: If#= 1 Alt= 1 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=usbfs E: Ad=06(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=07(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=87(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I: If#= 1 Alt= 2 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=usbfs E: Ad=06(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=07(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=87(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I: If#= 1 Alt= 3 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=usbfs E: Ad=06(O) Atr=02(Bulk) MxPS= 16 Ivl=0ms E: Ad=07(O) Atr=02(Bulk) MxPS= 16 Ivl=0ms E: Ad=87(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I: If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) E: Ad=05(O) Atr=02(Bulk) MxPS= 8 Ivl=0ms E: Ad=85(I) Atr=02(Bulk) MxPS= 8 Ivl=0ms -- Khendon's Law: If the same point is made twice by the same person, the thread is over. ------------------------------------------------------- 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-devel
