Distribution: Debian sarge Hardware Environment: Dymo Label writer 320 ( + VIA VT82xxxxx UHCI USB 1.1 Controller ) Software Environment: Problem Description: Kernel 2.4: localhost kernel: hub.c: new USB device 00:10.1-1, assigned address 9 localhost kernel: printer.c: usblp0: USB Bidirectional printer dev 9 if 0 alt 0 proto 2 vid 0x0922 pid 0x0010 localhost usbmgr[890]: vendor:0x922 product:0x10 localhost usbmgr[890]: class:0x7 subclass:0x1 protocol:0x2 localhost usbmgr[890]: USB device is matched the configuration localhost usbmgr[890]: "printer" was loaded It is working and /dev/usb/lp0 exists kernel 2.6: kernel: usb 3-1: new low speed USB device using address 4 kernel: usblp: probe of 3-1:1.0 failed with error -5 usbmgr[1678]: vendor:0x922 product:0x10 usbmgr[1678]: class:0x7 subclass:0x1 protocol:0x2 usbmgr[1678]: USB device is matched the configuration usbmgr[1678]: "printer" was loaded usblp gives the "kernel: usblp: probe of 3-1:1.0 failed with error -5" error and /dev/usb/lp0 is there but does not exist/work. part of /proc/bus/usb/devices: T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 6 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0922 ProdID=0010 Rev= 1.00 S: Manufacturer=DYMO S: Product=DYMO LabelWriter 320 S: SerialNumber=XXXremovedXXX C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=(none) E: Ad=81(I) Atr=02(Bulk) MxPS= 8 Ivl=0ms E: Ad=02(O) Atr=03(Int.) MxPS= 8 Ivl=1ms
After a little debug work I noticed that it is marked as buggy hardware in 2.6 while it is not marked as buggy in 2.4. line 1042 for usblp.c /* Ignore buggy hardware without the right endpoints. */ if (!epwrite || (ifd->desc.bInterfaceProtocol > 1 && !epread)) continue; after I had disabled the line I got: Unable to handle kernel NULL pointer dereference at virtual address 00000002 printing eip: f0cea723 *pde = 00000000 Oops: 0000 [#1] Modules linked in: usblp ipt_MASQUERADE iptable_nat ipt_LOG ipt_state ip_conntrack iptable_filter ip_tables ppp_deflate zlib_deflate zlib_inflate bsd_comp ppp_synctty vmnet vmmon thermal fan button processor ac battery nls_iso8859_1 nls_cp437 w83627hf i2c_sensor i2c_isa i2c_viapro i2c_core CPU: 0 EIP: 0060:[<f0cea723>] Tainted: P VLI EFLAGS: 00010246 (2.6.8.1n) EIP is at usblp_set_protocol+0x73/0x130 [usblp] eax: 00000000 ebx: efd1fc00 ecx: e7324760 edx: 00000002 esi: e946c460 edi: e946c478 ebp: 00000000 esp: e8f05e80 ds: 007b es: 007b ss: 0068 Process modprobe (pid: 2711, threadinfo=e8f04000 task=e915c020) Stack: efd1fc00 00000000 00000000 efd1fc00 e946c460 efd1fc00 00000002 c16dc3a0 f0cea193 e946c460 00000002 000000d0 e7324710 302d042d e6f2c53c c1780c0c 00000000 c1780c0c c017b218 efd1fcc4 000041ed c017b180 f0cec658 f0cec658 Call Trace: [<f0cea193>] usblp_probe+0x223/0x4a0 [usblp] [<c017b218>] create_dir+0x78/0xa0 [<c017b180>] init_dir+0x0/0x20 [<c02adf08>] usb_probe_interface+0x68/0x80 [<c0247b4f>] bus_match+0x3f/0x70 [<c0247c79>] driver_attach+0x59/0x90 [<c0248121>] bus_add_driver+0x91/0xb0 [<c02486df>] driver_register+0x2f/0x40 [<c02adfdf>] usb_register+0x3f/0xa0 [<f0cff013>] usblp_init+0x13/0x37 [usblp] [<c012cfdb>] sys_init_module+0x13b/0x1d0 [<c010403b>] syscall_call+0x7/0xb Code: aa 00 00 00 89 5c 24 08 8b 46 34 89 44 24 04 8b 06 89 04 24 e8 9f a2 5c cf 85 c0 89 c5 0f 88 95 00 00 00 8b 47 40 8b 1e 8b 4e 24 <0f> b6 50 02 8b 03 c1 e0 08 c1 e2 0f 09 d0 8b 56 14 89 71 54 0d
Is this problem still present: - in kernel 2.6.13-rc5 and - without any external modules loaded since booting?
I'm sorry, but you have broken hardware, as the kernel states.