[Xenomai-core] RT-Socket CAN vs. Mainline API

[Xenomai-core] RT-Socket CAN vs. Mainline API

[Jan Kiszka]

Hi Wolfgang,

painting some slides, I came across a statement from an older set:
"RT-Socket CAN is compatible with non-RT Socket CAN for Mainline". I
haven't tracked all details of the Socket CAN recently, I only recall
that (some/all?) IOCTLs died. What is the current state of the RTDM CAN
profile compared to what we will find in 2.6.25 and later?

Consider this thread also as reference for potential futures FAQs. ;)

Thanks,
Jan

-- 
Siemens AG, Corporate Technology, CT SE 2
Corporate Competence Center Embedded Linux

Re: [Xenomai-core] RT-Socket CAN vs. Mainline API

[Wolfgang Grandegger]

Hi Jan,

Jan Kiszka wrote:
> Hi Wolfgang,
> 
> painting some slides, I came across a statement from an older set:
> "RT-Socket CAN is compatible with non-RT Socket CAN for Mainline". I
> haven't tracked all details of the Socket CAN recently, I only recall
> that (some/all?) IOCTLs died. What is the current state of the RTDM CAN
> profile compared to what we will find in 2.6.25 and later?

The Socket-CAN-Core made it into 2.6.25 but the CAN device interface and
drivers are still missing. All SIO[SG]CAN* IOCTLs requests have been
dropped in favor of SYSFS files because most people think that there is
little chance to get them into mainline. Well, I personally still like
them. Furthermore, the name baudrate has been replaced by bitrate and
some refinement of the bit time setting will be done sooner than later.
Apart from that, RT-Socket-CAN is still compatible with Socket-CAN. When
the Socket-CAN device interface API definition has settled, it's time to
adapt RT-Socket-CAN.

> Consider this thread also as reference for potential futures FAQs. ;)

OK.

Wolfgang.