Re: problem with USB cdc-acm
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
problem with USB cdc-acm
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 [
