I posted this on the usb-users list, but several users there told me to post my problem here. I apologize in advance if these instructions are wrong.
Having read through the archives, I can't find anything like what I'm experiencing. Perhaps someone can point me in the right direction.
I have a Sony VAIO 505TX notebook with Debian Woody 3.0r1. I have an Iogear/Aten USB-to-Serial converter, model GUC232A, and I know that the hardware is working because it works in Windows 2000 on this computer's other partitions. I have Plug-and-Play OS turned off in the BIOS.
I am running the 2.4.21 kernel (I also tried 2.4.22) and I have the Prolific 2303 USB-to-Serial drivers compiled into the kernel (I'm not using modules). I also have a USB mouse that works in Linux, so I know at least that basic USB is working on this system.
At boot, I have the following lines (among others) in /var/log/messages" kernel: usbserial.c: USB Serial support registered for PL-2303 kernel: pl2303.c: Prolific PL2303 USB to serial adapter driver v0.9
Anyway, when I plug in the adapter, I get the following lines:
usbserial.c: PL-2303 converter detected
usbserial.c: PL-2303 converter now attached to ttyUSB0 (or usb/tts/0 for devfs)
So I think I am home clear, but nothing connected to /dev/ttyUSB0 can talk to any serial deviced attached to the adapter. I've tried Minicom pointing at /dev/ttyUSB0 and a modem plugged into it never responds. Even if I do a simple "echo hello > /dev/ttyUSB0" as root at the command line, the LED flashes on the adapter for a split second, and then just sits there. I need to hit Control-C to get the cursor back. When I do, I get the following dump (to the console and the logs)
Nov 17 10:16:25 cria3 kernel: printing eip:
Nov 17 10:16:25 cria3 kernel: c021f1d1
Nov 17 10:16:25 cria3 kernel: Oops: 0000
Nov 17 10:16:25 cria3 kernel: CPU: 0
Nov 17 10:16:25 cria3 kernel: EIP: 0010:[uhci_reset_interrupt+37/164] Not tainted
Nov 17 10:16:25 cria3 kernel: EFLAGS: 00010087
Nov 17 10:16:25 cria3 kernel: eax: c7f42a00 ebx: ffffff8d ecx: c7d05320 edx: 00000000
Nov 17 10:16:25 cria3 kernel: esi: c7da75e0 edi: 00000246 ebp: 00000286 esp: c172bd84
Nov 17 10:16:25 cria3 kernel: ds: 0018 es: 0018 ss: 0018
Nov 17 10:16:25 cria3 kernel: Process cat (pid: 407, stackpage=c172b000)
Nov 17 10:16:25 cria3 kernel: Stack: ffffff8d c7da75e0 00000000 00000286 c022094c c7da75e0 c7da75e8 c7da75e0
Nov 17 10:16:25 cria3 kernel: 00000286 c7f54360 00000001 00000000 c7cc1400 c7f1b1d4 c021fe20 c7da75e0
Nov 17 10:16:25 cria3 kernel: c7d40c00 c7d40c1c c186b000 00000000 c7f1b1d4 c021430e c7da75e0 c022b7d9
Nov 17 10:16:25 cria3 kernel: Call Trace: [uhci_call_completion+388/448] [uhci_unlink_urb+340/352] [usb_unl
ink_urb+38/48] [pl2303_close+333/376] [__serial_close+76/132]
Nov 17 10:16:25 cria3 kernel: [serial_close+159/180] [release_dev+599/1268] [__free_pages+29/32] [free_page_
and_swap_cache+51/56] [__free_pte+98/104] [zap_page_range+433/612]
Nov 17 10:16:25 cria3 kernel: [tty_release+10/16] [fput+76/224] [filp_close+89/100] [put_files_struct+84/188
] [do_exit+167/560] [sig_exit+146/148]
Nov 17 10:16:25 cria3 kernel: [do_signal+483/596] [tty_read+180/212] [sys_read+231/240] [signal_return+20/32
]
Nov 17 10:16:25 cria3 kernel:
Nov 17 10:16:25 cria3 kernel: Code: 8b 52 14 8b 42 e8 8b 6a ec 25 00 00 00 2f 0d 00 00 80 01 89
BTW, there is indeed a /dev/ttyUSB0 through about ttyUSB15 or so.
So, I'm guessing I'm missing something stupid here. Can someone point me in the right direction?
Thanks, Warr
------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
