topic Re: Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35) in i.MX Processors

Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

emanuelec — Tue, 22 Jan 2013 11:29:18 GMT

I use iMX28 + BSP L2.6.35_10.12.01. I configured kernel for using FlexCAN with CAN0 interface. I also added cantest and can4linux packages. I can powe up can device via ip command:

echo 250000 >> /sys/devices/platform/FlexCAN.0/bitrate

ip link set can0 up

and I am able to send and receive messages using cantest command:

cantest can0 71E#DEADBEEF --> send

cantest can0 & --> wait for message

but I don't have can0 device under /dev. So I cannot use, for example, utilities like can_send:

root@freescale ~$ can_send -Dcan0

open error 2;/dev/can0: No such file or directory

How can I add can0 device under /dev?

Thanks.

Re: Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

fabio_estevam — Wed, 06 Feb 2013 21:56:31 GMT

I am not a CAN expert, but I would suggest you to post this question to the arm kernel and netdev mailing lists.

Regards,

Fabio Estevam

Re: Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

YixingKong — Tue, 26 Feb 2013 07:58:32 GMT

Emanuele, have you posted your question to netdev ye and got answer? If yes, we may close your DI.

Thanks, Yixing

Re: Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

emanuelec — Tue, 26 Feb 2013 09:07:59 GMT

I’m sorry but I’m not able to change the position of this question. I select “Move” (in the right side) and in “Community Area” (I see italian version, I don’t know the English tyranslation…) I don’t see “netdev” o something similar. How can I move this thread and where?

Thanks

Emanuele Coli

Research & Development

Da: Yixing Kong mailto:admin@community.freescale.com

Inviato: martedì 26 febbraio 2013 9.00

A: Coli Emanuele

Oggetto: Re: i.MX Community - Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

http://community.freescale.com/themes/freescale_theme/images/logo.png<https://community.freescale.com/index.jspa>

Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

creato da Yixing Kong<https://community.freescale.com/people/YixingKong> ini.MX Community - Visualizza l'intera discussione<https://community.freescale.com/message/317178#317178>

Re: Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

fabio_estevam — Tue, 26 Feb 2013 12:41:02 GMT

My suggestion was for you to post to the following mailing lists:

linux-arm-kernel: linux-arm-kernel@lists.infradead.org

netdev:netdev@vger.kernel.org

Re: Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

emanuelec — Tue, 26 Feb 2013 13:00:12 GMT

OK! Thanks for all! I’m closing this thread in imxcommunity.

Emanuele Coli

Research & Development

Da: Fabio Estevam mailto:admin@community.freescale.com

Inviato: martedì 26 febbraio 2013 13.42

A: Coli Emanuele

Oggetto: Re: i.MX Community - Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

http://community.freescale.com/themes/freescale_theme/images/logo.png<https://community.freescale.com/index.jspa>

Adding /dev/canX in filesystem (iMX28 - Linux 2.6.35)

creato da Fabio Estevam<https://community.freescale.com/people/FabioEstevam> ini.MX Community - Visualizza l'intera discussione<https://community.freescale.com/message/317214#317214>