<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div></div><div><br></div><div>Here we can see initialization:</div><div><br></div><div></div><blockquote type="cite"><div>[ 9.624511] ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00<br>[ 9.650085] usb usb2: Manufacturer: Linux 2.6.32 ehci_hcd<br>[ 9.655548] usb usb2: SerialNumber: ehci-omap.0<br>[ 9.669464] ehci-omap ehci-omap.0: ...powerup ports...</div></blockquote><div><br></div><div>after plugging in a USM memory stick:</div><div><br><blockquote type="cite">[ 61.663787] usb 2-2: new high speed USB device using ehci-omap and address 2<br>[ 61.821350] usb 2-2: New USB device found, idVendor=8644, idProduct=800a<br>[ 61.828155] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3<br>[ 61.835388] usb 2-2: Product: USB Flash Disk <br>[ 61.839874] usb 2-2: Manufacturer: General <br>[ 61.844146] usb 2-2: SerialNumber: 000000000000EB9F<br>[ 61.859313] scsi0 : usb-storage 2-2:1.0<br><br>[ 66.893432] scsi 0:0:0:0: Direct-Access General USB Flash Disk 1.00 PQ: 0 ANSI: 2<br>[ 66.918365] sd 0:0:0:0: Attached scsi generic sg0 type 0<br>[ 66.927978] sd 0:0:0:0: [sda] 3913728 512-byte logical blocks: (2.00 GB/1.86 GiB)<br>[ 66.965698] sd 0:0:0:0: [sda] Write Protect is off<br>[ 66.983947] sd 0:0:0:0: [sda] Assuming drive cache: write through<br>[ 67.011688] sd 0:0:0:0: [sda] Assuming drive cache: write through<br>[ 67.017974] sda: sda1<br>[ 67.052581] sd 0:0:0:0: [sda] Assuming drive cache: write through<br>[ 67.085479] sd 0:0:0:0: [sda] Attached SCSI removable disk<br><br>bb-debian:~# lsusb<br>Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub<br>Bus 002 Device 002: ID 8644:800a <br>Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub<br><br>[ 102.898590] usb 2-2: USB disconnect, address 2<br><br></blockquote></div><div>after unplugging the memory key and plugging in a USB UMTS</div><div>stick (which is different from the GTM601 module):</div><div><br><blockquote type="cite">[ 124.280883] usb 2-2: new high speed USB device using ehci-omap and address 3<br>[ 124.458251] usb 2-2: New USB device found, idVendor=1c9e, idProduct=f000<br>[ 124.465057] usb 2-2: New USB device strings: Mfr=3, Product=2, SerialNumber=4<br>[ 124.472290] usb 2-2: Product: USB Modem<br>[ 124.476196] usb 2-2: Manufacturer: USB Modem<br>[ 124.480468] usb 2-2: SerialNumber: 1234567890ABCDEF<br></blockquote><div><br></div>It is always funny how much they care about reasonable identifications :)</div><div><br><blockquote type="cite">[ 124.507812] scsi1 : usb-storage 2-2:1.0<br>[ 128.142608] usb 2-2: USB disconnect, address 3<br>[ 128.554321] usb 2-2: new high speed USB device using ehci-omap and address 4<br>[ 128.731475] usb 2-2: New USB device found, idVendor=1c9e, idProduct=9603<br>[ 128.738281] usb 2-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3<br>[ 128.745483] usb 2-2: Product: Modem Configuration<br>[ 128.750274] usb 2-2: Manufacturer: USB Modem<br>[ 128.754577] usb 2-2: SerialNumber: 1234567890ABCDEF<br>[ 128.804351] scsi2 : usb-storage 2-2:1.3<br>[ 129.836547] usbcore: registered new interface driver usbserial<br>[ 129.874237] USB Serial support registered for generic<br>[ 129.891510] usbcore: registered new interface driver usbserial_generic<br>[ 129.904327] usbserial: USB Serial Driver core<br>[ 129.933013] USB Serial support registered for GSM modem (1-port)<br>[ 129.951416] option 2-2:1.0: GSM modem (1-port) converter detected<br>[ 129.961486] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB0<br>[ 129.968627] option 2-2:1.1: GSM modem (1-port) converter detected<br>[ 129.978424] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB1<br>[ 129.985565] option 2-2:1.2: GSM modem (1-port) converter detected<br>[ 129.995849] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB2<br>[ 130.005218] usbcore: registered new interface driver option<br>[ 130.017333] option: v0.7.2:USB Driver for GSM modems<br>[ 133.878295] scsi 2:0:0:0: Direct-Access USBModem Disk 2.31 PQ: 0 ANSI: 2<br>[ 133.900665] sd 2:0:0:0: Attached scsi generic sg0 type 0<br>[ 133.919311] sd 2:0:0:0: [sda] Attached SCSI removable disk<br></blockquote><br></div><div>Well, it wasn't as simple as it may now look.</div><div><br></div><div>Firstly we had to patch the ehci-omap.c driver to write</div><div>additional settings into the ULPI controller. The reason</div><div>is that we have no 5V VBUS in this system and had</div><div>to disable the > 4.4V comparator.</div><div><br></div><div>And then we did search a long time in the wrong</div><div>direction until we found that we had simply crossed</div><div>over D+ and D- of the USB socket in our test setup :)</div><div><br></div><div>So we can make the next "ok" mark in our hardware design</div><div>checklist.</div><div><br></div><div>Next we check all pads at the modem position and we will be</div><div>ready to install the first real modem!</div><div><br></div></body></html>