Hi, Some additional information: when unplug the power supply, I can get it working for a few minutes (ttyACM0). Then the same errors appears. Unplugging and plugging it in again results in a change to ttyACM1. regards, wim.
Wim de Vries wrote: > Hi, > I am trying to connect a (serial) USB device to my asus eee pc 900 with > Dedian. > The device connects OK on my HP compaq 6910p with Suse 10.3: > dmesg: > usb 7-1: new full speed USB device using uhci_hcd and address 4 > usb 7-1: new device found, idVendor=04d8, idProduct=000a > usb 7-1: new device strings: Mfr=1, Product=2, SerialNumber=3 > usb 7-1: Product: PIC18 USB CDC > usb 7-1: Manufacturer: Microchip > usb 7-1: SerialNumber: V1.1FS > usb 7-1: configuration #1 chosen from 1 choice > drivers/usb/class/cdc-acm.c: This device cannot do calls on its own. It > is no modem. > cdc_acm 7-1:1.0: ttyACM0: USB ACM device > > so it should ánd can use cdc-acm > > on the eee pc (the cdc-acm module is installed): > > [ 216.648044] usb 2-1: new full speed USB device using uhci_hcd and address 4 > [ 216.704127] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 217.888078] usb 2-1: new full speed USB device using uhci_hcd and address 5 > [ 218.031991] usb 2-1: device descriptor read/all, error -71 > [ 218.088093] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 219.128078] usb 2-1: new full speed USB device using uhci_hcd and address 7 > [ 219.277888] usb 2-1: unable to read config index 0 descriptor/all > [ 219.277888] usb 2-1: can't read configurations, error -71 > [ 219.336093] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 220.368043] usb 2-1: new full speed USB device using uhci_hcd and address 9 > [ 220.424086] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 221.608071] usb 2-1: new full speed USB device using uhci_hcd and address > 10 > [ 221.750199] usb 2-1: device descriptor read/all, error -71 > [ 221.808058] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 222.848077] usb 2-1: new full speed USB device using uhci_hcd and address > 12 > [ 222.990081] usb 2-1: device descriptor read/all, error -71 > [ 223.048063] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 224.088066] usb 2-1: new full speed USB device using uhci_hcd and address > 14 > [ 224.144103] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 225.328076] usb 2-1: new full speed USB device using uhci_hcd and address > 15 > [ 225.476010] usb 2-1: unable to read config index 0 descriptor/start: -71 > [ 225.476010] usb 2-1: chopping to 0 config(s) > [ 225.483627] usb 2-1: string descriptor 0 read error: -71 > [ 225.491359] usb 2-1: string descriptor 0 read error: -71 > [ 225.499051] usb 2-1: string descriptor 0 read error: -71 > [ 225.499051] usb 2-1: no configuration chosen from 0 choices > [ 225.499051] usb 2-1: New USB device found, idVendor=04d8, idProduct=000a > [ 225.499051] usb 2-1: New USB device strings: Mfr=1, Product=2, > SerialNumber=3 > [ 225.499051] usb 2-1: USB disconnect, address 15 > [ 226.568073] usb 2-1: new full speed USB device using uhci_hcd and address > 16 > [ 226.710080] usb 2-1: device descriptor read/all, error -71 > [ 226.768103] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 227.808075] usb 2-1: new full speed USB device using uhci_hcd and address > 18 > [ 227.950081] usb 2-1: device descriptor read/all, error -71 > [ 228.008095] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 229.068076] usb 2-1: new full speed USB device using uhci_hcd and address > 20 > [ 229.125840] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 230.288075] usb 2-1: new full speed USB device using uhci_hcd and address > 21 > [ 230.430184] usb 2-1: device descriptor read/all, error -71 > [ 230.488094] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 231.528176] usb 2-1: new full speed USB device using uhci_hcd and address > 23 > [ 231.670199] usb 2-1: device descriptor read/all, error -71 > [ 231.728102] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 232.768075] usb 2-1: new full speed USB device using uhci_hcd and address > 25 > [ 232.824102] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 234.008069] usb 2-1: new full speed USB device using uhci_hcd and address > 26 > [ 234.150081] usb 2-1: device descriptor read/all, error -71 > [ 234.208090] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 235.248078] usb 2-1: new full speed USB device using uhci_hcd and address > 28 > [ 235.304101] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 236.488081] usb 2-1: new full speed USB device using uhci_hcd and address > 29 > [ 236.638138] usb 2-1: unable to read config index 0 descriptor/all > [ 236.638138] usb 2-1: can't read configurations, error -71 > [ 236.696109] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 237.728077] usb 2-1: new full speed USB device using uhci_hcd and address > 31 > [ 237.877946] usb 2-1: unable to read config index 0 descriptor/all > [ 237.877946] usb 2-1: can't read configurations, error -71 > [ 237.936107] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 238.968077] usb 2-1: new full speed USB device using uhci_hcd and address > 33 > [ 239.024075] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 240.208067] usb 2-1: new full speed USB device using uhci_hcd and address > 34 > [ 240.350082] usb 2-1: device descriptor read/all, error -71 > [ 240.408093] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 241.448075] usb 2-1: new full speed USB device using uhci_hcd and address > 36 > [ 241.504095] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 242.688047] usb 2-1: new full speed USB device using uhci_hcd and address > 37 > [ 242.830269] usb 2-1: device descriptor read/all, error -71 > [ 242.888077] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 243.928077] usb 2-1: new full speed USB device using uhci_hcd and address > 39 > [ 244.078015] usb 2-1: unable to read config index 0 descriptor/all > [ 244.078015] usb 2-1: can't read configurations, error -71 > [ 244.136101] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 245.168039] usb 2-1: new full speed USB device using uhci_hcd and address > 41 > [ 245.310084] usb 2-1: device descriptor read/all, error -71 > [ 245.368063] hub 2-0:1.0: unable to enumerate USB device on port 1 > [ 246.408036] usb 2-1: new full speed USB device using uhci_hcd and address > 43 > [ 246.464069] hub 2-0:1.0: unable to enumerate USB device on port 1 > > ... etc. > I have googled and tried the whole day but cannot get it working. > Is there a way to force the use of the cdc-acm module for this device? > thanks. > Wim > > > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". 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