Re: Linux cdc-acm-driver
On Tue, Mar 06, 2012 at 11:30:33AM +0400, tamerlan311 wrote: 2012/3/6 Greg KH gre...@linuxfoundation.org On Mon, Mar 05, 2012 at 03:24:17PM +0400, tamerlan311 wrote: This kernel module was completely stable. But i think that i should do some clean up code before upstream it. There's no need to do that now, you can always send follow-on patches doing that. Ok. Was planned for future developments: implement write to device support. (I do not know why, but this feature was implemented in original source) How can a barcode scanner be written to? Official service software can configure scanner via Bi-Directional port mode. Instead of special barcode for config. implement work in UNI-Directional mode (0c2e:0710) I am busy working, but I'll try to finish in few week. How about I take what you have now, that ensures we make the 3.4 kernel release deadline, and then you send follow-on patches for the other things as you work on them? That way people can use the driver now, which is what they want to do :) I do not mind, it's a great idea! still need some kind of reaction from me at now? No, I can take the code as-is and create a patch and add it to the tree if you don't want to do that. I'll try to do it by the end of this week and I'll cc: you on the patch. thanks, greg k-h ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Linux cdc-acm-driver
On Mon, Mar 05, 2012 at 03:24:17PM +0400, tamerlan311 wrote: This kernel module was completely stable. But i think that i should do some clean up code before upstream it. There's no need to do that now, you can always send follow-on patches doing that. Was planned for future developments: implement write to device support. (I do not know why, but this feature was implemented in original source) How can a barcode scanner be written to? implement work in UNI-Directional mode (0c2e:0710) I am busy working, but I'll try to finish in few week. How about I take what you have now, that ensures we make the 3.4 kernel release deadline, and then you send follow-on patches for the other things as you work on them? That way people can use the driver now, which is what they want to do :) thanks, greg k-h ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Linux cdc-acm-driver
Hi Stefan On Thu, Mar 1, 2012 at 7:51 PM, Stefan Dreyer stefan.dre...@ddnetservice.net wrote: Hi, Am 01.03.2012 14:57, schrieb Manavendra Nath Manav: The Metrologic scanner is working perfectly in bi-directional serial mode. But when I configure it as USB HID Keyboard mode as shown in the link and keyboard layout as US-English, I am not getting any data from Scanner. I have opened a terminal and scanned multiple barcodes but no output on screen. [root@pe1800xs e518816]# dmesg [98498.945783] input: Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner as /devices/pci:00/:00:1d.1/usb7/7-2/7-2:1.0/input/input20 [98498.945850] generic-usb 0003:0C2E:0200.0011: input,hidraw2: USB HID v1.11 Keyboard [Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner] on usb-:00:1d.1-2/input0 [root@pe1800xs e518816]# lsusb -v Bus 007 Device 020: ID 0c2e:0200 Metro Metrologic Scanner [root@pe1800xs e518816]# cat /proc/bus/usb/devices T: Bus=07 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 20 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0c2e ProdID=0200 Rev=58.88 S: Manufacturer=Honeywell Scanning and Mobility S: Product=Honeywell Scanning and Mobility Scanner C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=450mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms Can you help me in getting data from Scanner in USB HID Keyboard Emulation mode as this would reduce the burden of using an extra driver and the application program can read directly from the emulation keyboard instead of listening to serial device. For me, that looks good. But i never have any problems using the scanner in Keyboard-Mode. Are all the necessary drivers loaded (usbcore,hid,usbhid,...) What happens, if you plug a new USB-Keyboard in. Does it works? Did you try to recall factory-settings before? Maybe the Keyboard-mode is disabled somewhere else. you can test all the input-devices, in directory /dev/input there must be device-files named event0 ... eventN (You could identify it via directory: /dev/input/by-id, if you have it on fedora 14) you can test them via # cat /dev/input/event9 | hexdump If you scan codes, the hexdump of the keycodes is shown. I scanned all the required bar-codes to make Metrologic MS1690 work as USB HID Keyboard, it is being detected and driver usbhid attached to it, but I am not able to see any output on console. The output is fine when it is configured in serial mode. However, hexdump shows keycodes. I attached another standard USB Dell keyboard and it is working fine. [98498.945783] input: Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner as /devices/pci:00/:00:1d.1/usb7/7-2/7-2:1.0/input/input20 [98498.945850] generic-usb 0003:0C2E:0200.0011: input,hidraw2: USB HID v1.11 Keyboard [Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner] on usb-:00:1d.1-2/input0 [root@pe1800xs input]# cat /proc/bus/usb/devices T: Bus=07 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 20 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0c2e ProdID=0200 Rev=58.88 S: Manufacturer=Honeywell Scanning and Mobility S: Product=Honeywell Scanning and Mobility Scanner C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=450mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms [root@pe1800xs ~]# ll /dev/input/by-id/ total 0 lrwxrwxrwx 1 root root 9 Feb 29 15:46 usb-Dell_Dell_QuietKey_Keyboard-event-kbd - ../event2 lrwxrwxrwx 1 root root 9 Feb 29 17:17 usb-Dell_Dell_USB_Entry_Keyboard-event-kbd - ../event5 lrwxrwxrwx 1 root root 9 Mar 1 19:10 usb-Honeywell_Scanning_and_Mobility_Honeywell_Scanning_and_Mobility_Scanner-event-kbd - ../event6 [root@pe1800xs input]# cat event6 | hexdump 000 8be0 4f50 ef90 0009 0004 0004 0027 0007 010 8be0 4f50 ef97 0009 0001 000b 0001 020 8be0 4f50 ef98 0009 030 8be0 4f50 0ecf 000a 0004 0004 0027 0007 040 8be0 4f50 0ed4 000a 0001 000b 050 8be0 4f50 0ed5 000a *** snip *** I am getting hexdump after scanning bar-codes, but why it is not coming on console as it should like a standard keyboard. -- Manavendra Nath Manav ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Linux cdc-acm-driver
On Fri, Mar 2, 2012 at 2:50 PM, Stefan Dreyer stefan.dre...@ddnetservice.net wrote: Hi, Am 02.03.2012 10:05, schrieb Manavendra Nath Manav: Hi Stefan On Thu, Mar 1, 2012 at 7:51 PM, Stefan Dreyer stefan.dre...@ddnetservice.net wrote: Hi, Am 01.03.2012 14:57, schrieb Manavendra Nath Manav: The Metrologic scanner is working perfectly in bi-directional serial mode. But when I configure it as USB HID Keyboard mode as shown in the link and keyboard layout as US-English, I am not getting any data from Scanner. I have opened a terminal and scanned multiple barcodes but no output on screen. [root@pe1800xs e518816]# dmesg [98498.945783] input: Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner as /devices/pci:00/:00:1d.1/usb7/7-2/7-2:1.0/input/input20 [98498.945850] generic-usb 0003:0C2E:0200.0011: input,hidraw2: USB HID v1.11 Keyboard [Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner] on usb-:00:1d.1-2/input0 [root@pe1800xs e518816]# lsusb -v Bus 007 Device 020: ID 0c2e:0200 Metro Metrologic Scanner [root@pe1800xs e518816]# cat /proc/bus/usb/devices T: Bus=07 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 20 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0c2e ProdID=0200 Rev=58.88 S: Manufacturer=Honeywell Scanning and Mobility S: Product=Honeywell Scanning and Mobility Scanner C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=450mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms Can you help me in getting data from Scanner in USB HID Keyboard Emulation mode as this would reduce the burden of using an extra driver and the application program can read directly from the emulation keyboard instead of listening to serial device. For me, that looks good. But i never have any problems using the scanner in Keyboard-Mode. Are all the necessary drivers loaded (usbcore,hid,usbhid,...) What happens, if you plug a new USB-Keyboard in. Does it works? Did you try to recall factory-settings before? Maybe the Keyboard-mode is disabled somewhere else. you can test all the input-devices, in directory /dev/input there must be device-files named event0 ... eventN (You could identify it via directory: /dev/input/by-id, if you have it on fedora 14) you can test them via # cat /dev/input/event9 | hexdump If you scan codes, the hexdump of the keycodes is shown. I scanned all the required bar-codes to make Metrologic MS1690 work as USB HID Keyboard, it is being detected and driver usbhid attached to it, but I am not able to see any output on console. The output is fine when it is configured in serial mode. However, hexdump shows keycodes. I attached another standard USB Dell keyboard and it is working fine. [98498.945783] input: Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner as /devices/pci:00/:00:1d.1/usb7/7-2/7-2:1.0/input/input20 [98498.945850] generic-usb 0003:0C2E:0200.0011: input,hidraw2: USB HID v1.11 Keyboard [Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner] on usb-:00:1d.1-2/input0 [root@pe1800xs input]# cat /proc/bus/usb/devices T: Bus=07 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 20 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0c2e ProdID=0200 Rev=58.88 S: Manufacturer=Honeywell Scanning and Mobility S: Product=Honeywell Scanning and Mobility Scanner C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=450mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms [root@pe1800xs ~]# ll /dev/input/by-id/ total 0 lrwxrwxrwx 1 root root 9 Feb 29 15:46 usb-Dell_Dell_QuietKey_Keyboard-event-kbd - ../event2 lrwxrwxrwx 1 root root 9 Feb 29 17:17 usb-Dell_Dell_USB_Entry_Keyboard-event-kbd - ../event5 lrwxrwxrwx 1 root root 9 Mar 1 19:10 usb-Honeywell_Scanning_and_Mobility_Honeywell_Scanning_and_Mobility_Scanner-event-kbd - ../event6 [root@pe1800xs input]# cat event6 | hexdump 000 8be0 4f50 ef90 0009 0004 0004 0027 0007 010 8be0 4f50 ef97 0009 0001 000b 0001 020 8be0 4f50 ef98 0009 030 8be0 4f50 0ecf 000a 0004 0004 0027 0007 040 8be0 4f50 0ed4 000a 0001 000b 050 8be0 4f50 0ed5 000a *** snip *** I am getting hexdump after scanning bar-codes, but why it is not coming on console as it should like a standard keyboard. If you get the hexdump, your scanner is configured and working correctly. There must be a problem with your console or your X-configuration. Thanks Stefan, you are right that if I get hexdump then the scanner is working properly. This test was failing before because I was trying to get barcodes over Putty terminal emulation which is basically a SSH session and will not display the keyboard inputs from the host machine. When I checked on the host machine, it’s
Re: Linux cdc-acm-driver
On Thu, Mar 1, 2012 at 1:57 PM, Stefan Dreyer
stefan.dre...@ddnetservice.net wrote:
Hi,
allthough the answer is offtopic for cdc-acm-driver, i will answer, because
maybe it helps other people in future.
I can tell you exactly, what is going on. If the scanner switches to
ProductId=0720 (0c2e:0720) the scanner is working in Serial-Mode. If you
want the scanner let work as serial device, you have to use the driver
metro-usb. The manufacturer has this driver, but that one is outdatet and
doesn't compile on actual Linux kernel.
I found an actual driver, which compiles even with kernel 3.2
https://gitorious.org/other/metro-usb/commits/master
Thanks a lot for the prompt reply, this should adequately solve my
problem. I am able to download the driver source and compile. However,
I have run into a trivial module format error.
[root@pe1800xs serial]# modinfo metro-usb.ko
filename: metro-usb.ko
description: Metrologic Instruments Inc. - USB-POS driver
author: Aleksey Babahin tamerlan...@gmail.com
author: Philip Nicastro
license: GPL
srcversion: AF4C7DDE2804EBB1578A05F
alias: usb:v0C2Ep0710d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0C2Ep0720d*dc*dsc*dp*ic*isc*ip*
depends: usbserial
vermagic: 2.6.35.6-45.fc14.i686 SMP mod_unload modversions 686
parm: debug:Print debug info (bool 1=on, 0=off) (bool)
parm: vendor:User specified vendor ID (ushort) (ushort)
parm: product:User specified product ID (ushort) (ushort)
[root@pe1800xs serial]# modprobe -f -v metro-usb
insmod /lib/modules/2.6.35.6-45.fc14.i686/kernel/drivers/usb/serial/metro-usb.ko
FATAL: Error inserting metro_usb
(/lib/modules/2.6.35.6-45.fc14.i686/kernel/drivers/usb/serial/metro-usb.ko):
Invalid module format
[root@pe1800xs serial]# uname -a
Linux pe1800xs 2.6.35.6-45.fc14.i686 #1 SMP Mon Oct 18 23:56:17 UTC
2010 i686 i686 i386 GNU/Linux
[root@pe1800xs serial]# dmesg
[84119.755750] metro_usb: version magic '2.6.35.6-45.fc14.i686 SMP
mod_unload modversions 686 ' should be '2.6.35.6-45.fc14.i686 SMP
mod_unload 686 '
I am running Fedora14 with Force module loading option disabled. How
can I turn it ON without recompiling the kernel. Or, since I have the
souce files of the driver (attached), how can I modify the metro-usb.c
file to provide suitable module version.
--
Manavendra Nath Manav
Makefile
Description: Binary data
/*
Date Created: 9/15/2006
File Name: metro-usb.c
Description: metro-usb.c is the drivers main source file. The driver is a USB to Serial converter.
The driver takes USB data and sends it to a virtual ttyUSB# serial port.
The driver interfaces with the usbserial.ko driver supplied by Linux.
NOTES:
To install the driver:
1. Install the usbserial.ko module supplied by Linux with: # insmod usbserial.ko
2. Install the metro-usb.ko module with: # insmod metro-usb.ko vender=0x product=0x debug=1
The vendor, product and debug parameters are optional.
Some of this code is credited to Linux USB open source files that are distributed with Linux.
Copyright: 2007 Metrologic Instruments. All rights reserved.
Copyright: 2011 Azimut Ltd. http://azimutrzn.ru/
Requirements: gedit.exe, notepad.exe
Revision History:
Date: Developer: Revisions:
--
1/30/2007 Philip Nicastro Initial release. (v1.0.0.0)
2/27/2007 Philip Nicastro Changed the metrousb_read_int_callback function to use a loop with the tty_insert_flip_char function to copy each byte to the tty layer. Removed the tty_buffer_request_room and the tty_insert_flip_string function calls. These calls were not supported on Fedora.
2/27/2007 Philip Nicastro Released. (v1.1.0.0)
10/07/2011 Aleksey Babahin Update for new kernel (tested on 2.6.38)
Add unidirection mode support
*/
#include linux/kernel.h
#include linux/init.h
#include linux/tty.h
#include linux/module.h
#include linux/usb.h
#include linux/errno.h
#include linux/slab.h
#include linux/tty_driver.h
#include linux/tty_flip.h
#include linux/moduleparam.h
#include linux/spinlock.h
#include asm/uaccess.h
#include linux/errno.h
#include metro-usb.h
#include linux/usb/serial.h
/* Version Information */
#define DRIVER_VERSION v1.2.0.0
#define DRIVER_DESC Metrologic Instruments Inc. - USB-POS driver
/* Device table list. */
static struct usb_device_id id_table [] = {
{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID) },
{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) },
{ }, /* Optional paramenter entry. */
{ }, /* Terminating entry. */
};
MODULE_DEVICE_TABLE(usb, id_table);
/* Input parameter constants. */
static int debug;
static __u16 vendor;
static __u16 product;
/* Function prototypes. */
static void metrousb_cleanup (struct usb_serial_port *port);
static void metrousb_close (struct usb_serial_port *port);
static int metrousb_open (struct tty_struct *tty, struct usb_serial_port
Re: Linux cdc-acm-driver
On Thu, Mar 1, 2012 at 3:18 PM, Manavendra Nath Manav mnm.ker...@gmail.com wrote: On Thu, Mar 1, 2012 at 1:57 PM, Stefan Dreyer stefan.dre...@ddnetservice.net wrote: Hi, allthough the answer is offtopic for cdc-acm-driver, i will answer, because maybe it helps other people in future. I can tell you exactly, what is going on. If the scanner switches to ProductId=0720 (0c2e:0720) the scanner is working in Serial-Mode. If you want the scanner let work as serial device, you have to use the driver metro-usb. The manufacturer has this driver, but that one is outdatet and doesn't compile on actual Linux kernel. I found an actual driver, which compiles even with kernel 3.2 https://gitorious.org/other/metro-usb/commits/master Thanks a lot for the prompt reply, this should adequately solve my problem. I am able to download the driver source and compile. However, I have run into a trivial module format error. [root@pe1800xs serial]# modinfo metro-usb.ko filename: metro-usb.ko description: Metrologic Instruments Inc. - USB-POS driver author: Aleksey Babahin tamerlan...@gmail.com author: Philip Nicastro license: GPL srcversion: AF4C7DDE2804EBB1578A05F alias: usb:v0C2Ep0710d*dc*dsc*dp*ic*isc*ip* alias: usb:v0C2Ep0720d*dc*dsc*dp*ic*isc*ip* depends: usbserial vermagic: 2.6.35.6-45.fc14.i686 SMP mod_unload modversions 686 parm: debug:Print debug info (bool 1=on, 0=off) (bool) parm: vendor:User specified vendor ID (ushort) (ushort) parm: product:User specified product ID (ushort) (ushort) [root@pe1800xs serial]# modprobe -f -v metro-usb insmod /lib/modules/2.6.35.6-45.fc14.i686/kernel/drivers/usb/serial/metro-usb.ko FATAL: Error inserting metro_usb (/lib/modules/2.6.35.6-45.fc14.i686/kernel/drivers/usb/serial/metro-usb.ko): Invalid module format [root@pe1800xs serial]# uname -a Linux pe1800xs 2.6.35.6-45.fc14.i686 #1 SMP Mon Oct 18 23:56:17 UTC 2010 i686 i686 i386 GNU/Linux [root@pe1800xs serial]# dmesg [84119.755750] metro_usb: version magic '2.6.35.6-45.fc14.i686 SMP mod_unload modversions 686 ' should be '2.6.35.6-45.fc14.i686 SMP mod_unload 686 ' I am running Fedora14 with Force module loading option disabled. How can I turn it ON without recompiling the kernel. Or, since I have the souce files of the driver (attached), how can I modify the metro-usb.c file to provide suitable module version. I am able to load the metro-usb.ko module now and the scanner works perfectly. I opened the serial console using bash# serial /dev/ttyUSB0 9600 and can see the 1D and 2D scanned barcodes. Thanks :) [89073.533413] metro-usb 7-1:1.0: Metrologic USB to serial converter. converter detected [89073.533489] usb 7-1: Metrologic USB to serial converter. converter now attached to ttyUSB0 The workaround I did to remove invalid module format error is that I modified the vermagic.h file. [root@pe1800xs e518816]# diff /usr/src/kernels/2.6.35.6-45.fc14.i686/include/linux/vermagic.h.old /usr/src/kernels/2.6.35.6-45.fc14.i686/include/linux/vermagic.h.new 32,33c32 MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \ MODULE_ARCH_VERMAGIC --- MODULE_VERMAGIC_MODULE_UNLOAD MODULE_ARCH_VERMAGIC Is this the correct way to resolve the error, although it works for me? I am sure there would be other better ways to resolve vermagic conflict errors. -- Manavendra Nath Manav ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Linux cdc-acm-driver
Hi Stefan On Thu, Mar 1, 2012 at 5:48 PM, Manavendra Nath Manav mnm.ker...@gmail.com wrote: On Thu, Mar 1, 2012 at 3:18 PM, Manavendra Nath Manav mnm.ker...@gmail.com wrote: On Thu, Mar 1, 2012 at 1:57 PM, Stefan Dreyer stefan.dre...@ddnetservice.net wrote: Hi, allthough the answer is offtopic for cdc-acm-driver, i will answer, because maybe it helps other people in future. I can tell you exactly, what is going on. If the scanner switches to ProductId=0720 (0c2e:0720) the scanner is working in Serial-Mode. If you want the scanner let work as serial device, you have to use the driver metro-usb. The manufacturer has this driver, but that one is outdatet and doesn't compile on actual Linux kernel. I found an actual driver, which compiles even with kernel 3.2 https://gitorious.org/other/metro-usb/commits/master Thanks a lot for the prompt reply, this should adequately solve my problem. I am able to download the driver source and compile. However, I have run into a trivial module format error. [root@pe1800xs serial]# modinfo metro-usb.ko filename: metro-usb.ko description: Metrologic Instruments Inc. - USB-POS driver author: Aleksey Babahin tamerlan...@gmail.com author: Philip Nicastro license: GPL srcversion: AF4C7DDE2804EBB1578A05F alias: usb:v0C2Ep0710d*dc*dsc*dp*ic*isc*ip* alias: usb:v0C2Ep0720d*dc*dsc*dp*ic*isc*ip* depends: usbserial vermagic: 2.6.35.6-45.fc14.i686 SMP mod_unload modversions 686 parm: debug:Print debug info (bool 1=on, 0=off) (bool) parm: vendor:User specified vendor ID (ushort) (ushort) parm: product:User specified product ID (ushort) (ushort) [root@pe1800xs serial]# modprobe -f -v metro-usb insmod /lib/modules/2.6.35.6-45.fc14.i686/kernel/drivers/usb/serial/metro-usb.ko FATAL: Error inserting metro_usb (/lib/modules/2.6.35.6-45.fc14.i686/kernel/drivers/usb/serial/metro-usb.ko): Invalid module format [root@pe1800xs serial]# uname -a Linux pe1800xs 2.6.35.6-45.fc14.i686 #1 SMP Mon Oct 18 23:56:17 UTC 2010 i686 i686 i386 GNU/Linux [root@pe1800xs serial]# dmesg [84119.755750] metro_usb: version magic '2.6.35.6-45.fc14.i686 SMP mod_unload modversions 686 ' should be '2.6.35.6-45.fc14.i686 SMP mod_unload 686 ' I am running Fedora14 with Force module loading option disabled. How can I turn it ON without recompiling the kernel. Or, since I have the souce files of the driver (attached), how can I modify the metro-usb.c file to provide suitable module version. I am able to load the metro-usb.ko module now and the scanner works perfectly. I opened the serial console using bash# serial /dev/ttyUSB0 9600 and can see the 1D and 2D scanned barcodes. Thanks :) [89073.533413] metro-usb 7-1:1.0: Metrologic USB to serial converter. converter detected [89073.533489] usb 7-1: Metrologic USB to serial converter. converter now attached to ttyUSB0 The workaround I did to remove invalid module format error is that I modified the vermagic.h file. [root@pe1800xs e518816]# diff /usr/src/kernels/2.6.35.6-45.fc14.i686/include/linux/vermagic.h.old /usr/src/kernels/2.6.35.6-45.fc14.i686/include/linux/vermagic.h.new 32,33c32 MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \ MODULE_ARCH_VERMAGIC --- MODULE_VERMAGIC_MODULE_UNLOAD MODULE_ARCH_VERMAGIC Is this the correct way to resolve the error, although it works for me? I am sure there would be other better ways to resolve vermagic conflict errors. The Metrologic scanner is working perfectly in bi-directional serial mode. But when I configure it as USB HID Keyboard mode as shown in the link and keyboard layout as US-English, I am not getting any data from Scanner. I have opened a terminal and scanned multiple barcodes but no output on screen. [root@pe1800xs e518816]# dmesg [98498.945783] input: Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner as /devices/pci:00/:00:1d.1/usb7/7-2/7-2:1.0/input/input20 [98498.945850] generic-usb 0003:0C2E:0200.0011: input,hidraw2: USB HID v1.11 Keyboard [Honeywell Scanning and Mobility Honeywell Scanning and Mobility Scanner] on usb-:00:1d.1-2/input0 [root@pe1800xs e518816]# lsusb -v Bus 007 Device 020: ID 0c2e:0200 Metro Metrologic Scanner Device Descriptor: bLength18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0c2e Metro idProduct 0x0200 Metrologic Scanner bcdDevice 58.88 iManufacturer 1 Honeywell Scanning and Mobility iProduct2 Honeywell Scanning and Mobility Scanner iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 34
Re: Linux cdc-acm-driver
On Thu, Mar 01, 2012 at 03:48:57PM +0530, Manavendra Nath Manav wrote: On Thu, Mar 1, 2012 at 1:57 PM, Stefan Dreyer stefan.dre...@ddnetservice.net wrote: Hi, allthough the answer is offtopic for cdc-acm-driver, i will answer, because maybe it helps other people in future. I can tell you exactly, what is going on. If the scanner switches to ProductId=0720 (0c2e:0720) the scanner is working in Serial-Mode. If you want the scanner let work as serial device, you have to use the driver metro-usb. The manufacturer has this driver, but that one is outdatet and doesn't compile on actual Linux kernel. I found an actual driver, which compiles even with kernel 3.2 https://gitorious.org/other/metro-usb/commits/master Thanks a lot for the prompt reply, this should adequately solve my problem. I am able to download the driver source and compile. However, I have run into a trivial module format error. [root@pe1800xs serial]# modinfo metro-usb.ko filename: metro-usb.ko description: Metrologic Instruments Inc. - USB-POS driver author: Aleksey Babahin tamerlan...@gmail.com author: Philip Nicastro license: GPL srcversion: AF4C7DDE2804EBB1578A05F alias: usb:v0C2Ep0710d*dc*dsc*dp*ic*isc*ip* alias: usb:v0C2Ep0720d*dc*dsc*dp*ic*isc*ip* depends: usbserial vermagic: 2.6.35.6-45.fc14.i686 SMP mod_unload modversions 686 parm: debug:Print debug info (bool 1=on, 0=off) (bool) parm: vendor:User specified vendor ID (ushort) (ushort) parm: product:User specified product ID (ushort) (ushort) Aleksey, any reason this driver hasn't been submitted upstream yet? If you don't mind, I'll be glad to forward port it and get it merged to the main kernel.org tree. Or is there some reason we can't do that? thanks, greg k-h ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Linux cdc-acm-driver
Hi Johan
On Wed, Feb 29, 2012 at 8:28 PM, Johan Hovold jhov...@gmail.com wrote:
On Sun, Feb 26, 2012 at 04:37:33PM +0100, Stefan Dreyer wrote:
Hello Johan,
i hope, you can help me. I try to get a barcode-Scanner (Metrologic
Focus MS 1690) to work. If i take a look at the Windows driver, this
scanner should work in serial-mode as CDC ACM.
i have added the device:
{ USB_DEVICE(0x0c2e, 0x0720), /*Metro Metrologic MS7120 Barcode Scanner
(bi-directional serial mode) */
},
and recompile the module. If i plug the device in, the module cdc-acm is
loaded. But no device ttyACM0 appears.
What does lsusb -v say? If it is a cdc-acm device you should not need to
add the pid/vid to the cdc-acm driver.
What is written to the system logs?
Is there a possibility to debug the module? I would like to know, what
happens.
If your recompiling the module you can enable debugging by changing the
following undef
#undef DEBUG
to define, or you can enable dynamic debugging (see
Documentation/dynamic-debug-howto.txt).
Thanks,
Johan
Sorry for jumping in the middle of the thread, but I too have a
similar problem with Metrologic Focus MS1690 Barcode scanner.
Currently, I am getting the device as bi-directional serial mode but I
want to make it work as a USB HID Keyboard device. In the
manufacturer's manual there is a barcode to configure the device as
such. After this I can see from dmesg that first the device gets
registered as USB HID v1.11 Keyboard, the I guess the scanner power
cycles disconnecting the USB and again gets registered as a new
device.
*** dmesg snip ***
[69818.065741] input: Honeywell Scanning and Mobility Honeywell
Scanning and Mobility Scanner as
/devices/pci:00/:00:1d.1/usb7/7-1/7-1:1.0/input/input6
[69818.065810] generic-usb 0003:0C2E:0200.0003: input,hidraw2: USB HID
v1.11 Keyboard [Honeywell Scanning and Mobility Honeywell Scanning and
Mobility Scanner] on usb-:00:1d.1-1/input0
[69823.804854] usb 7-1: USB disconnect, address 2
[69827.180717] usb 7-1: new low speed USB device using uhci_hcd and address 3
[69827.355585] usb 7-1: New USB device found, idVendor=0c2e, idProduct=0720
[69827.355590] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[69827.355593] usb 7-1: Product: Honeywell Scanning and Mobility Scanner
[69827.355596] usb 7-1: Manufacturer: Honeywell Scanning and Mobility
[root@pe1800xs ~]# lsusb -v
Bus 007 Device 003: ID 0c2e:0720 Metro Metrologic MS7120 Barcode
Scanner (bi-dir ectional
serial mode)
Device Descriptor:
bLength18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0c2e Metro
idProduct 0x0720 Metrologic MS7120 Barcode Scanner
(bi-directional se rial
mode)
bcdDevice1.00
iManufacturer 1 Honeywell Scanning and Mobility
iProduct2 Honeywell Scanning and Mobility Scanner
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 3 POS USB
bmAttributes 0x80
(Bus Powered)
MaxPower 450mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
** UNRECOGNIZED: 09 21 11 01 00 01 22 3f 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes3
Transfer TypeInterrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes3
Transfer TypeInterrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Device Status: 0x
(Bus Powered)
[root@pe1800xs ~]# cat /proc/bus/usb/devices
T: Bus=07 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=1.5 MxCh= 0
D: Ver= 1.10 Cls=00(ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0c2e ProdID=0720 Rev= 1.00
S: Manufacturer=Honeywell Scanning and Mobility
S: Product=Honeywell Scanning and Mobility Scanner
C:*
