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I have a standard Radio Shack USB to Serial cable, needed for my laptop since it lacks a serial port. The cable worked in the past as, as I have minicom installed, and the default device it uses is /dev/ttyUSB0. It no longer works, the short reason is that the USB cable is seen when it is plugged in, but it never assigns the USB to any /dev/ttuUSBX port. It doesn't assign the cable to anything. I'll print out the dmesg, lsmod lsusb and such.
Dmesg is abridged, due to post length
Code:
jim@jimsworktop:~$ dmesg
Linux version 2.6.23.1-take1 (root@jimsworktop) (gcc version 4.2.3 20071014 (prerelease) (Debian 4.2.2-3)) #1 SMP Fri Nov 9 11:01:36 EST 2007
PCI: Setting latency timer of device 0000:00:1e.0 to 64
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 11
PCI: setting IRQ 11 as level-triggered
ACPI: PCI Interrupt 0000:02:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
ACPI: PCI Interrupt 0000:02:00.1[B] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1572864 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
checking if image is initramfs... it is
Switched to high resolution mode on CPU 0
Freeing initrd memory: 5438k freed
Simple Boot Flag at 0x35 set to 0x1
audit: initializing netlink socket (disabled)
audit(1199289124.804:1): initialized
highmem bounce pool size: 64 pages
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
Boot video device is 0000:01:00.0
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
pnp: Device 00:0a activated.
00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a NS16550A
ACPI: PCI Interrupt 0000:00:1f.6[B] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt for device 0000:00:1f.6 disabled
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI No-Shortcut mode
Freeing unused kernel memory: 232k freed
input: AT Translated Set 2 keyboard as /class/input/input0
ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
ACPI: Processor [CPU] (supports 8 throttling states)
ACPI: Thermal Zone [THM0] (44 C)
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
USB Universal Host Controller Interface driver v3.0
ACPI: PCI Interrupt 0000:00:1d.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1d.0: irq 11, io base 0x00001800
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
SCSI subsystem initialized
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1d.1[B] -> Link [LNKD] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.1: irq 11, io base 0x00001820
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
libata version 2.21 loaded.
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1d.2[C] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.2: irq 11, io base 0x00001840
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
Floppy drive(s): fd0 is 1.44M
Intel(R) PRO/1000 Network Driver - version 7.3.20-k2-NAPI
Copyright (c) 1999-2006 Intel Corporation.
FDC 0 is a National Semiconductor PC87306
ACPI: PCI Interrupt 0000:02:01.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1d.7[D] -> Link [LNKH] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 4
ehci_hcd 0000:00:1d.7: debug port 1
PCI: cache line size of 32 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: irq 11, io mem 0xc0000000
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 6 ports detected
e1000: 0000:02:01.0: e1000_probe: (PCI:33MHz:32-bit) 00:11:25:18:41:c0
Marking TSC unstable due to: possible TSC halt in C2.
Time: acpi_pm clocksource has been installed.
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
ata_piix 0000:00:1f.1: version 2.12
PCI: Enabling device 0000:00:1f.1 (0005 -> 0007)
ACPI: PCI Interrupt 0000:00:1f.1[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1f.1 to 64
scsi0 : ata_piix
scsi1 : ata_piix
ata1: PATA max UDMA/100 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x00011860 irq 14
ata2: PATA max UDMA/100 cmd 0x00010170 ctl 0x00010376 bmdma 0x00011868 irq 15
ata1.00: ATA-6: HTS541040G9AT00, MB2IA60A, max UDMA/100
ata1.00: 78140160 sectors, multi 16: LBA
ata1.00: configured for UDMA/100
ata2.00: ATAPI: HL-DT-STCD-RW/DVD DRIVE GCC-4242N, 0201, max UDMA/33
usb 2-1: new full speed USB device using uhci_hcd and address 2
ata2.00: configured for UDMA/33
scsi 0:0:0:0: Direct-Access ATA HTS541040G9AT00 MB2I PQ: 0 ANSI: 5
scsi 1:0:0:0: CD-ROM HL-DT-ST RW/DVD GCC-4242N 0201 PQ: 0 ANSI: 5
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
usb 2-1: configuration #1 chosen from 1 choice
sd 0:0:0:0: [sda] 78140160 512-byte hardware sectors (40008 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 0:0:0:0: [sda] 78140160 512-byte hardware sectors (40008 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
sd 0:0:0:0: [sda] Attached SCSI disk
sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 1:0:0:0: Attached scsi CD-ROM sr0
sd 0:0:0:0: Attached scsi generic sg0 type 0
sr 1:0:0:0: Attached scsi generic sg1 type 5
ReiserFS: sda6: found reiserfs format "3.6" with standard journal
ReiserFS: sda6: using ordered data mode
ReiserFS: sda6: journal params: device sda6, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: sda6: checking transaction log (sda6)
ReiserFS: sda6: Using r5 hash to sort names
input: PC Speaker as /class/input/input1
Real Time Clock Driver v1.12ac
parport_pc 00:0b: reported by Plug and Play ACPI
parport0: PC-style at 0x3bc, irq 7 [PCSPP,TRISTATE]
intel_rng: FWH not detected
Linux agpgart interface v0.102
agpgart: Detected an Intel 855PM Chipset.
agpgart: AGP aperture is 256M @ 0xd0000000
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
ACPI: PCI Interrupt 0000:00:1f.3[B] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
Non-volatile memory driver v1.2
thinkpad_acpi: ThinkPad ACPI Extras v0.16
thinkpad_acpi: http://ibm-acpi.sf.net/
thinkpad_acpi: ThinkPad BIOS 1RETDPWW (3.21 ), EC 1RHT71WW-3.04
thinkpad_acpi: IBM ThinkPad T42
input: ThinkPad Extra Buttons as /class/input/input2
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.02 (26-Jul-2007)
irda_init()
NET: Registered protocol family 23
input: Power Button (FF) as /class/input/input3
ACPI: Power Button (FF) [PWRF]
input: Lid Switch as /class/input/input4
ACPI: Lid Switch [LID]
input: Sleep Button (CM) as /class/input/input5
ACPI: Sleep Button (CM) [SLPB]
Synaptics Touchpad, model: 1, fw: 5.9, id: 0x2c6ab1, caps: 0x884793/0x0
serio: Synaptics pass-through port at isa0060/serio1/input0
input: SynPS/2 Synaptics TouchPad as /class/input/input6
iTCO_wdt: Found a ICH4-M TCO device (Version=1, TCOBASE=0x1060)
iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
pnp: Device 00:0c activated.
nsc_ircc_pnp_probe() : From PnP, found firbase 0x2F8 ; irq 3 ; dma 1.
nsc-ircc, chip->init
nsc-ircc, Found chip at base=0x02e
nsc-ircc, driver loaded (Dag Brattli)
IrDA: Registered device irda0
nsc-ircc, Found dongle: HP HSDL-1100/HSDL-2100
ACPI: Battery Slot [BAT0] (battery present)
ACPI: AC Adapter [AC] (on-line)
input: Video Bus as /class/input/input7
ACPI: Video Device [VID] (multi-head: yes rom: no post: no)
Yenta: CardBus bridge found at 0000:02:00.0 [1014:0552]
Yenta: Using INTVAL to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:02:00.0, mfunc 0x01d21b22, devctl 0x64
ieee80211_crypt: registered algorithm 'NULL'
Yenta: ISA IRQ mask 0x0430, PCI irq 11
Socket status: 30000086
pcmcia: parent PCI bridge I/O window: 0x4000 - 0x8fff
cs: IO port probe 0x4000-0x8fff: clean.
pcmcia: parent PCI bridge Memory window: 0xc0200000 - 0xcfffffff
pcmcia: parent PCI bridge Memory window: 0xe8000000 - 0xefffffff
Yenta: CardBus bridge found at 0000:02:00.1 [1014:0552]
Yenta: Using INTVAL to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:02:00.1, mfunc 0x01d21b22, devctl 0x64
ieee80211: 802.11 data/management/control stack, git-1.1.13
ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>
ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.2.2kmq
ipw2200: Copyright(c) 2003-2006 Intel Corporation
Yenta: ISA IRQ mask 0x0430, PCI irq 11
Socket status: 30000086
pcmcia: parent PCI bridge I/O window: 0x4000 - 0x8fff
cs: IO port probe 0x4000-0x8fff: clean.
pcmcia: parent PCI bridge Memory window: 0xc0200000 - 0xcfffffff
pcmcia: parent PCI bridge Memory window: 0xe8000000 - 0xefffffff
ACPI: PCI Interrupt 0000:02:02.0[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
ipw2200: Detected geography ZZM (11 802.11bg channels, 0 802.11a channels)
ACPI: PCI Interrupt 0000:00:1f.6[B] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1f.6 to 64
MC'97 1 converters and GPIO not ready (0xff00)
ACPI: PCI Interrupt 0000:00:1f.5[B] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1f.5 to 64
cs: IO port probe 0x100-0x3af: clean.
cs: IO port probe 0x3e0-0x4ff: excluding 0x4d0-0x4d7
cs: IO port probe 0x820-0x8ff: clean.
cs: IO port probe 0xc00-0xcf7: clean.
cs: IO port probe 0xa00-0xaff: clean.
cs: IO port probe 0x100-0x3af: clean.
cs: IO port probe 0x3e0-0x4ff: excluding 0x4d0-0x4d7
cs: IO port probe 0x820-0x8ff: clean.
cs: IO port probe 0xc00-0xcf7: clean.
cs: IO port probe 0xa00-0xaff: clean.
intel8x0_measure_ac97_clock: measured 55456 usecs
intel8x0: clocking to 48000
Adding 489940k swap on /dev/sda5. Priority:-1 extents:1 across:489940k
IBM TrackPoint firmware: 0x0e, buttons: 3/3
input: TPPS/2 IBM TrackPoint as /class/input/input8
loop: module loaded
device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
ReiserFS: sda3: found reiserfs format "3.6" with standard journal
ReiserFS: sda3: using ordered data mode
ReiserFS: sda3: journal params: device sda3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: sda3: checking transaction log (sda3)
ReiserFS: sda3: Using r5 hash to sort names
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
ADDRCONF(NETDEV_UP): eth0: link is not ready
eth1: no IPv6 routers present
IBM machine detected. Enabling interrupts during APM calls.
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac)
apm: overridden by ACPI.
lp0: using parport0 (interrupt-driven).
ppdev: user-space parallel port driver
Clocksource tsc unstable (delta = -245000857 ns)
input: /usr/sbin/thinkpad-keys as /class/input/input9
Bluetooth: Core ver 2.11
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP ver 2.8
Bluetooth: L2CAP socket layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM ver 1.8
[drm] Initialized drm 1.1.0 20060810
ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
[drm] Initialized radeon 1.28.0 20060524 on minor 0
agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode
[drm] Setting GART location based on new memory map
[drm] writeback test succeeded in 2 usecs
usb 2-1: USB disconnect, address 2
usb 2-1: new full speed USB device using uhci_hcd and address 3
usb 2-1: configuration #1 chosen from 1 choice
pccard: CardBus card inserted into slot 0
ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
PCI: Enabling device 0000:03:00.0 (0000 -> 0002)
ACPI: PCI Interrupt 0000:03:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:03:00.0 to 64
ohci_hcd 0000:03:00.0: OHCI Host Controller
ohci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 5
ohci_hcd 0000:03:00.0: irq 11, io mem 0xc4000000
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected
PCI: Enabling device 0000:03:00.1 (0000 -> 0002)
ACPI: PCI Interrupt 0000:03:00.1[B] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:03:00.1 to 64
ohci_hcd 0000:03:00.1: OHCI Host Controller
ohci_hcd 0000:03:00.1: new USB bus registered, assigned bus number 6
ohci_hcd 0000:03:00.1: irq 11, io mem 0xc4001000
usb usb6: configuration #1 chosen from 1 choice
hub 6-0:1.0: USB hub found
hub 6-0:1.0: 1 port detected
usb 5-1: new full speed USB device using ohci_hcd and address 2
usb 5-1: configuration #1 chosen from 1 choice
usbcore: registered new interface driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
drivers/usb/serial/usb-serial.c: USB Serial Driver core
drivers/usb/serial/usb-serial.c: USB Serial support registered for Sierra USB modem (1 port)
drivers/usb/serial/usb-serial.c: USB Serial support registered for Sierra USB modem (3 port)
sierra 5-1:1.0: Sierra USB modem (3 port) converter detected
usb 5-1: Sierra USB modem (3 port) converter now attached to ttyUSB0
usb 5-1: Sierra USB modem (3 port) converter now attached to ttyUSB1
usb 5-1: Sierra USB modem (3 port) converter now attached to ttyUSB2
usbcore: registered new interface driver sierra
drivers/usb/serial/sierra.c: USB Driver for Sierra Wireless USB modems: v.1.2.5b
PPP generic driver version 2.4.2
PPP BSD Compression module registered
PPP Deflate Compression module registered
usb 2-1: USB disconnect, address 3
usb 2-1: new full speed USB device using uhci_hcd and address 4
usb 2-1: configuration #1 chosen from 1 choice
ohci_hcd 0000:03:00.0: HC died; cleaning up
ohci_hcd 0000:03:00.1: HC died; cleaning up
pccard: card ejected from slot 0
usb 5-1: USB disconnect, address 2
sierra3 ttyUSB0: Sierra USB modem (3 port) converter now disconnected from ttyUSB0
sierra3 ttyUSB1: Sierra USB modem (3 port) converter now disconnected from ttyUSB1
sierra3 ttyUSB2: Sierra USB modem (3 port) converter now disconnected from ttyUSB2
sierra 5-1:1.0: device disconnected
ohci_hcd 0000:03:00.0: remove, state 0
usb usb5: USB disconnect, address 1
ohci_hcd 0000:03:00.0: USB bus 5 deregistered
ACPI: PCI interrupt for device 0000:03:00.0 disabled
ohci_hcd 0000:03:00.1: remove, state 0
usb usb6: USB disconnect, address 1
ohci_hcd 0000:03:00.1: USB bus 6 deregistered
ACPI: PCI interrupt for device 0000:03:00.1 disabled
usb 2-1: USB disconnect, address 4
usb 2-1: new full speed USB device using uhci_hcd and address 5
usb 2-1: configuration #1 chosen from 1 choice
pccard: CardBus card inserted into slot 0
PCI: Enabling device 0000:03:00.0 (0000 -> 0002)
ACPI: PCI Interrupt 0000:03:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:03:00.0 to 64
ohci_hcd 0000:03:00.0: OHCI Host Controller
ohci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 5
ohci_hcd 0000:03:00.0: irq 11, io mem 0xc4000000
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected
PCI: Enabling device 0000:03:00.1 (0000 -> 0002)
ACPI: PCI Interrupt 0000:03:00.1[B] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:03:00.1 to 64
ohci_hcd 0000:03:00.1: OHCI Host Controller
ohci_hcd 0000:03:00.1: new USB bus registered, assigned bus number 6
ohci_hcd 0000:03:00.1: irq 11, io mem 0xc4001000
usb usb6: configuration #1 chosen from 1 choice
hub 6-0:1.0: USB hub found
hub 6-0:1.0: 1 port detected
usb 5-1: new full speed USB device using ohci_hcd and address 2
usb 5-1: configuration #1 chosen from 1 choice
sierra 5-1:1.0: Sierra USB modem (3 port) converter detected
usb 5-1: Sierra USB modem (3 port) converter now attached to ttyUSB0
usb 5-1: Sierra USB modem (3 port) converter now attached to ttyUSB1
usb 5-1: Sierra USB modem (3 port) converter now attached to ttyUSB2
usb 2-1: USB disconnect, address 5
usb 2-1: new full speed USB device using uhci_hcd and address 6
usb 2-1: configuration #1 chosen from 1 choice
You can see me plugging the usb part of the cable in and out, it shows a disconnect and such, but never assigns the cable to anything in /dev like it does to the EVDO ttyUSB0 card.
The Sierra USB modem that got assigned to ttyUSB0-2 is a EVDO card, getting me online to write this up. When that is not plugged in, my /dev looks like this:
jim@jimsworktop:~$ lsmod |grep usb
usbserial 31920 4 sierra
usbcore 129968 6 sierra,usbserial,ohci_hcd,ehci_hcd,uhci_hcd
Here is lsusb:
Code:
jim@jimsworktop:~$ lsusb
Bus 004 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Kernel is a custom build one on Debian Sid:
Code:
jim@jimsworktop:~$ uname -r
2.6.23.1-take1
Some module info:
Code:
jim@jimsworktop:~$ sudo modinfo usbserial
filename: /lib/modules/2.6.23.1-take1/kernel/drivers/usb/serial/usbserial.ko
license: GPL
description: USB Serial Driver core
author: Greg Kroah-Hartman, greg@kroah.com, http://www.kroah.com/linux/
depends: usbcore
vermagic: 2.6.23.1-take1 SMP mod_unload 686
parm: vendor:User specified USB idVendor (ushort)
parm: product:User specified USB idProduct (ushort)
parm: debug:Debug enabled or not (bool)
So basically, I see it not assigning any /dev address to the cable, which it used to do. I did the most distasteful thing in the world, and rebooting into another unmentionable OS, and some crap program called hyper-terminal connected through the same cable without issue, so the hardware itself is ok. What can I do to get the cable addresses as ttyUSB0, or anything so minicom can reach it?
I use wvdial for the Sierra wireless EVDO card. I haven't tried using it to go over the USB to serial cable. When I'm at work I'll see if I can get that to work, although I don't think it has anything to do with the problem at hand. Of course, if I knew what the problem was, I would simply fix it rather than post about it, so I'll certainly try your suggestion.
according to your #dmesg out put it is set for ttyUSB0 and above it is says choice 1 which is ttyUSB0 choice 2 is ttyUSB1 etc. so do this
plug it in reboot go to BIOS make sure it is set for none plug and play or none windos O/S. then type ls /dev/ttyUSB0 and the screen will out put
/dev/ttyUSB0 then do ls -l /dev/ttyUSB0 out put will be somthing like this. crw--rw---1 root 14 62, 64 2008-01-02 21:45./dev/ttyUSB0 now lets link it to that device.ln -s /dev/ttyUSB0 /dev/modem
dont un plug it ok because this is a linux kernel problem every time you unplug it gives it a new address same port though replug it turns in to ttyUSB1 it will do this all the way to 72 that is why you cant find it. now
if your modem is already linked then. you will have to do a
ls -l /dev/modem it should respond /dev/modem ---> /dev/ttyUSB0
if not and it says somthing like /dev/modem ---> /dev/ttyS0 then type
rm /dev/modem then type ln -s /dev/ttyUSB0 /dev/modem. your modem will work now.if when you reboot later on and you have the same problem you will have to retype the link again. or creat a autoload in you rcd or profild or what ever system your using. now in your dial up program set the modem to /dev/modem
Thanks Drakeo, but I don't have a problem with a modem, the modem/EVDO card works wonderfully. The problem is with the USB serial cable. It doesn't show up in /dev at all. If you look at the results of ls /dev above, you'll see the first has no ttyUSB items, and the second has ttyUSB0 through ttyUSB2. The change is that I added the EVDO modem in, but plugging in the USB serial cable never shows up in /dev. The USB serial cable used to show as ttyUSB0, or if I have the EVDO modem in, it would be ttyUSB3, as you suggest it should be. Now it is nothing. I don't mind hunting the item down in /dev, that isn't a problem, it is the fact that it doesn't show up in /dev that I have an issue with.
The Radio Shack USB serial adapter cable uses the PL2303 module. You can try loading the module manually and see if the adapter is recognized. However, I do not see it being recognized via the output of lsusb. I also can not tell when you plug/unplug the RS adapter via the dmesg command.
I assume the cable worked after you modified the kernel.
Most wonderful, thanks so much michaelk! After modprobe pl2303 -
Code:
drivers/usb/serial/usb-serial.c: USB Serial support registered for pl2303
usbcore: registered new interface driver pl2303
drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor driver
usb 2-2: new full speed USB device using uhci_hcd and address 2
usb 2-2: configuration #1 chosen from 1 choice
pl2303 2-2:1.0: pl2303 converter detected
usb 2-2: pl2303 converter now attached to ttyUSB0
Interestingly enough, even though it works, lsusb still has nothing to report:
Code:
jim@jimsworktop:~$ lsusb
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
These were some sample output when I would disconnect/reconnect the cable:
Code:
usb 2-1: USB disconnect, address 2
usb 2-1: new full speed USB device using uhci_hcd and address 3
usb 2-1: configuration #1 chosen from 1 choice
Thanks Drakeo, but I don't have a problem with a modem, the modem/EVDO card works wonderfully. The problem is with the USB serial cable. It doesn't show up in /dev at all. If you look at the results of ls /dev above, you'll see the first has no ttyUSB items, and the second has ttyUSB0 through ttyUSB2. The change is that I added the EVDO modem in, but plugging in the USB serial cable never shows up in /dev. The USB serial cable used to show as ttyUSB0, or if I have the EVDO modem in, it would be ttyUSB3, as you suggest it should be. Now it is nothing. I don't mind hunting the item down in /dev, that isn't a problem, it is the fact that it doesn't show up in /dev that I have an issue with.
Peace,
JimBass
help me out jim what I get from you is that the serial cable is connected to an addapter and that conect to the usb serial port. I'm lost if you do not plug anything device into the cable it will never see the cable sorry but thats how it works. but if you do have stuff conected to it and it isnt seeing it then we have the problem. you can 72 serial ports all empty and never see it. it will never load the module unless you have it set to load at boot up.
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