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| usb2can: Linux driver https://www.8devices.com/community/viewtopic.php?f=16&t=241 |
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| Author: | krumboeck [ 28 Oct 2012, 09:17 ] |
| Post subject: | usb2can: Linux driver |
Hi! When will a Linux driver be available? Is it possible to get the protocol? regards, Bernd |
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| Author: | gedass [ 29 Oct 2012, 08:19 ] |
| Post subject: | Re: usb2can: Linux driver |
I can provide canal dll and kernel driver for windows source codes |
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| Author: | krumboeck [ 29 Oct 2012, 09:46 ] |
| Post subject: | Re: usb2can: Linux driver |
I never developed a linux driver, but I'll give it a try. I think SocketCan or an ioctl controlled character device will be the right way to do this. Please send the source code to my mail address (krumboeck<at>universalnet<dot>at) or tell me an address where I can download. regards, Bernd |
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| Author: | krumboeck [ 05 Nov 2012, 16:54 ] |
| Post subject: | Re: usb2can: Linux driver |
Searching for testers! I've created a repository on github: https://github.com/krumboeck/usb2can The driver is very experimental. It comes WITHOUT ANY WARRANTY!!! It can destroy parts of you software and hardware. --> that's not a joke Compilation was only tested on linux 3.2.0 x86-64. Hardware was only tested in loopback mode, because I don't have any CAN hardware (except this adapter). USB port sniffing: mount -t debugfs none_debugs /sys/kernel/debug modprobe usbmon wireshark http://biot.com/blog/usb-sniffing-on-linux Build socketcan utils: mkdir socketcan cd socketcan svn checkout svn://svn.berlios.de/socketcan/trunk cd trunk/can-utils make Play around with socketcan utils: Dump can socket on a console: ./candump can0 Send can frame on another console: ./cansend can0 500#1E.10.10 |
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| Author: | krumboeck [ 09 Nov 2012, 17:04 ] |
| Post subject: | Re: usb2can: Linux driver |
STILL LOOKING FOR TESTERS!! Please don't fear. Many fixes and improvements were implemented since my last post. Sadly I have no second can device, so I can only play with the adapter itself. What should work: * bittiming (up to 1MBps) * sending and receiving data * error detection * error counter * loopback mode * silent mode * 11bit and 29bit IDs regards, Bernd |
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| Author: | NaYthan [ 13 Nov 2012, 09:27 ] |
| Post subject: | Re: usb2can: Linux driver |
I don't think people are afraid to test your driver... I'd suspect people would be happy to help you out with it. But I for one don't have any CAN hardware laying around, so I can't help you out. And I suspect that most people around here don't have any CAN hardware either. Sadly this is still a rather small community :/ |
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| Author: | Gerd [ 17 Nov 2012, 17:16 ] |
| Post subject: | Re: usb2can: Linux driver |
Hi Bernd, many thanks for your work on the Linux USB2CAN driver. I've tested your code: Loopback is working  But normal mode not: I have a LPC1768 testboard with testcode sending 1Mbps CAN-Frames - I only get two Error Frames after the transmission was started. The test setup was used many times before and is verified to work. Is the setup code missing ? I didn' dive into the code yet ... Regards Gerd |
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| Author: | krumboeck [ 20 Nov 2012, 08:32 ] |
| Post subject: | Re: usb2can: Linux driver |
Hi Gerd! Sorry for the delay, but I didn't get a notification mail about your post. Many thanks for your test. I will try to help you, but we shouldn't spam this forum with this task. Please send a mail to "krumboeck<at>universalnet<dot>at". regards, Bernd |
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| Author: | NaYthan [ 21 Nov 2012, 11:56 ] |
| Post subject: | Re: usb2can: Linux driver |
| Author: | krumboeck [ 22 Nov 2012, 09:36 ] |
| Post subject: | Re: usb2can: Linux driver |
Sorry, but I don't think a forum is the right place for handling driver issues. Issues should be reported to the bugtracker on: https://github.com/krumboeck/usb2can/ Some issues need a long conversation about tests, speculations, possible solutions, ... I appreciate your patience and will post a solution when we fixed this issue. If someone know the answer to any of the following questions, it would be helpfull: * APB_CLK frequency? * Settings for BRP, SJW, TSEG1, TSEG2 for 1MBps? * Default setting for DAR flag? regards, Bernd |
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