Hi Marcel,
It only saves the latest fw and config for only one device.
I will dig the caching capability of request_firmware first.
Thanks,
BRs,
> Subject: Re: [PATCH v2] Bluetooth: btrtl: Save firmware and config
>
> Hi Alex,
>
> > usb reset resume will cause downloading firmware again and
> > requesting firmware may be failed while host is resuming
> >
> > Signed-off-by: Alex Lu <alex...@realsil.com.cn>
> > ---
> > drivers/bluetooth/btrtl.c | 101
> ++++++++++++++++++++++++++++++++++++--
> > 1 file changed, 97 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
> > index 208feef63de4..416a5cb676e3 100644
> > --- a/drivers/bluetooth/btrtl.c
> > +++ b/drivers/bluetooth/btrtl.c
> > @@ -56,6 +56,8 @@ struct btrtl_device_info {
> > int cfg_len;
> > };
> >
> > +static struct btrtl_device_info dev_info;
> > +
>
> No. We are are not using magic global variables. What happens if you attach
> more than one device? Also I assumed that request_firmware has a caching
> capability of sorts so that drivers don’t have to re-implement caching of the
> firmware.
>
> Regards
>
> Marcel
>
>
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