Hi, I've a problem with a Sierra Wireless AirCard 881 (PCMCIA) on my ThinkPad X41. It correctly attaches as umsm0, but then only the first port (ucom0) is configured and this port is not "AT-capable". The card has instead four serial ports and the third (ucom2) is the one that accepts AT commands.
Since this card works ok under both winxp and linux, I think I can exclude hardware related problems. This is an extract from dmesg: ohci0 at cardbus0 dev 0 function 0 "NEC USB" rev 0x43: irq 11, version 1.0 usb5 at ohci0: USB revision 1.0 uhub5 at usb5 "NEC OHCI root hub" rev 1.00/1.00 addr 1 ohci1 at cardbus0 dev 0 function 1 "NEC USB" rev 0x43: irq 11, version 1.0 usb6 at ohci1: USB revision 1.0 uhub6 at usb6 "NEC OHCI root hub" rev 1.00/1.00 addr 1 umsm0 at uhub5 port 1 configuration 1 interface 0 "Sierra Wireless, Incorporated AirCard" rev 1.10/0.02 addr 2 ucom0 at umsm0 And output from "usbdevs -dv": Controller /dev/usb0: addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel(0x8086), rev 1.00 port 1 powered port 2 powered port 3 addr 2: high speed, self powered, config 1, External HDD(0x0701), Western Digital(0x1058), rev 2.40, iSerialNumber DEF10C20641E port 4 powered port 5 powered port 6 powered port 7 powered port 8 powered Controller /dev/usb1: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x8086), rev 1.00 port 1 powered port 2 powered Controller /dev/usb2: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x8086), rev 1.00 port 1 powered port 2 powered Controller /dev/usb3: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x8086), rev 1.00 port 1 addr 2: full speed, power 90 mA, config 1, product 0x2441(0x2441), Actiontec Electronics(0x1668), rev 5.46, iSerialNumber \u303 port 2 addr 3: full speed, power 100 mA, config 1, Biometric Coprocessor(0x2016), STMicroelectronics(0x0483), rev 0.01 Controller /dev/usb4: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x8086), rev 1.00 port 1 powered port 2 powered Controller /dev/usb5: addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), NEC(0x1033), rev 1.00 port 1 addr 2: full speed, power 500 mA, config 1, AirCard(0x6851), Sierra Wireless, Incorporated(0x1199), rev 0.02 Following are informations I've collected using a linux livecd: note that we have four ports recognized as ttyUSB0, ttyUSB1, ttyUSB2 and ttyUSB3, where /dev/ttyUSB2 is the one that can be used for ppp. Can anybody help me? cheers, David Output from minicom: OK ATI Manufacturer: Sierra Wireless, Inc. Model: AC881 Revision: F1_2_3_15CAP C:/WS/FW/F1_2_3_15CAP/MSM7200R3/SRC/AMSS 2008/09/10 15:53:10 IMEI: *************** IMEI SV: 14 FSN: D411658138912 3GPP Release 6 +GCAP: +CGSM,+DS,+ES OK AT+COPS? +COPS: 0,0,"vodafone IT",2 OK dmesg: [ 77.491500] ohci_hcd 0000:05:00.0: enabling device (0000 -> 0002) [ 77.491511] ohci_hcd 0000:05:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 77.491541] ohci_hcd 0000:05:00.0: setting latency timer to 64 [ 77.491546] ohci_hcd 0000:05:00.0: OHCI Host Controller [ 77.491585] ohci_hcd 0000:05:00.0: new USB bus registered, assigned bus number 6 [ 77.491610] ohci_hcd 0000:05:00.0: irq 16, io mem 0xa4000000 [ 77.572773] usb usb6: configuration #1 chosen from 1 choice [ 77.572819] hub 6-0:1.0: USB hub found [ 77.572833] hub 6-0:1.0: 1 port detected [ 77.573343] ohci_hcd 0000:05:00.1: enabling device (0000 -> 0002) [ 77.573356] ohci_hcd 0000:05:00.1: PCI INT B -> GSI 16 (level, low) -> IRQ 16 [ 77.573388] ohci_hcd 0000:05:00.1: setting latency timer to 64 [ 77.573394] ohci_hcd 0000:05:00.1: OHCI Host Controller [ 77.573427] ohci_hcd 0000:05:00.1: new USB bus registered, assigned bus number 7 [ 77.573452] ohci_hcd 0000:05:00.1: irq 16, io mem 0xa4001000 [ 77.658269] usb usb7: configuration #1 chosen from 1 choice [ 77.658326] hub 7-0:1.0: USB hub found [ 77.658340] hub 7-0:1.0: 1 port detected [ 81.888031] usb 6-1: new full speed USB device using ohci_hcd and address 2 [ 82.033068] usb 6-1: configuration #1 chosen from 1 choice [ 82.276708] usbcore: registered new interface driver usbserial [ 82.276724] USB Serial support registered for generic [ 82.276769] usbcore: registered new interface driver usbserial_generic [ 82.276772] usbserial: USB Serial Driver core [ 82.279113] USB Serial support registered for Sierra USB modem [ 82.279147] sierra 6-1:1.0: Sierra USB modem converter detected [ 82.281142] usb 6-1: Sierra USB modem converter now attached to ttyUSB0 [ 82.281223] usb 6-1: Sierra USB modem converter now attached to ttyUSB1 [ 82.281296] usb 6-1: Sierra USB modem converter now attached to ttyUSB2 [ 82.281369] usb 6-1: Sierra USB modem converter now attached to ttyUSB3 [ 82.281388] usbcore: registered new interface driver sierra [ 82.281391] sierra: v.1.3.3:USB Driver for Sierra Wireless USB modems lsusb output: Bus 006 Device 002: ID 1199:6851 Sierra Wireless, Inc. AirCard 881 Device Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x1199 Sierra Wireless, Inc. idProduct 0x6851 AirCard 881 Device bcdDevice 0.02 iManufacturer 1 Sierra Wireless, Incorporated iProduct 2 AirCard iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 81 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 9 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 3 Data Interface Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 128 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x05 EP 5 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Status: 0x0000 (Bus Powered)