Re: [RFC PATCH 0/5] can: slcan: extend supported features (step 2)

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Hello Oliver,

On Sun, Jul 17, 2022 at 4:13 PM Oliver Hartkopp <socketcan@xxxxxxxxxxxx> wrote:
>
> Hello Dario,
>
> I have been maintaining the slcan.c driver for a long time and I'm still
> in the MODULE_AUTHOR() macro.
>
> As you are very committed to the slcan driver and its extensions it
> probably makes sense to take over the maintainer-ship and add yourself
> to the MODULE_AUTHOR() macro.
>
> Analogue to the CAN FD driver from the CTU you could also provide a
> similar patch for the MAINTAINER file:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=cfdb2f365cb9d
>

I am happy and honored. I hope I am adequate for the task.
Thanks and regards,

Dario

> Best regards,
> Oliver
>
>
> On 16.07.22 19:00, Dario Binacchi wrote:
> > With this series I try to finish the task, started with the series [1],
> > of completely removing the dependency of the slcan driver from the
> > userspace slcand/slcan_attach applications.
> >
> > The series, however, still lacks a patch for sending the bitrate setting
> > command to the adapter:
> >
> > slcan_attach -b <btr> <dev>
> >
> > Without at least this patch the task cannot be considered truly completed.
> >
> > The idea I got is that this can only happen through the ethtool API.
> > Among the various operations made available by this interface I would
> > have used the set_regs (but only the get_regs has been developed), or,
> > the set_eeprom, even if the setting would not be stored in an eeprom.
> > IMHO it would take a set_regs operation with a `struct ethtool_wregs'
> > parameter similar to `struct ethtool_eeprom' without the magic field:
> >
> > struct ethtool_wregs {
> >       __u32   cmd;
> >       __u32   offset;
> >       __u32   len;
> >       __u8    data[0];
> > };
> >
> > But I am not the expert and if there was an alternative solution already
> > usable, it would be welcome.
> >
> > The series also contains patches that remove the legacy stuff (slcan_devs,
> > SLCAN_MAGIC, ...) and do some module cleanup.
> >
> > The series has been created on top of the patches:
> >
> > can: slcan: convert comments to network style comments
> > can: slcan: slcan_init() convert printk(LEVEL ...) to pr_level()
> > can: slcan: fix whitespace issues
> > can: slcan: convert comparison to NULL into !val
> > can: slcan: clean up if/else
> > can: slcan: use scnprintf() as a hardening measure
> > can: slcan: do not report txerr and rxerr during bus-off
> > can: slcan: do not sleep with a spin lock held
> >
> > applied to linux-next.
> >
> > [1] https://lore.kernel.org/all/20220628163137.413025-1-dario.binacchi@xxxxxxxxxxxxxxxxxxxx/
> >
> >
> > Dario Binacchi (5):
> >    can: slcan: remove useless header inclusions
> >    can: slcan: remove legacy infrastructure
> >    can: slcan: change every `slc' occurrence in `slcan'
> >    can: slcan: use the generic can_change_mtu()
> >    can: slcan: send the listen-only command to the adapter
> >
> >   drivers/net/can/slcan/slcan-core.c | 465 +++++++++--------------------
> >   1 file changed, 134 insertions(+), 331 deletions(-)
> >



-- 

Dario Binacchi

Embedded Linux Developer

dario.binacchi@xxxxxxxxxxxxxxxxxxxx

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