Messages in this thread | | | Date | Mon, 27 Jun 2016 12:09:15 -0700 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH 3/3] drivers core: allow id match override when manually binding driver |
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On Sun, Jun 26, 2016 at 09:07:08PM +0200, Michal Suchanek wrote: > On 26 June 2016 at 20:28, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote: > > On Thu, Jun 23, 2016 at 05:41:20PM -0000, Michal Suchanek wrote: > >> This allows binding spidev on any slave device by hand using sysfs > >> without adding superfluous compatibles or any other needless > >> complication. > >> > >> Note that any slave driver that requires configuration will fail to > >> probe anyway. Only a driver that binds to anything can be bound > >> successfully. > >> > >> Signed-off-by: Michal Suchanek <hramrach@gmail.com> > >> --- > >> drivers/base/Kconfig.debug | 14 +++++++++ > >> drivers/base/bus.c | 72 +++++++++++++++++++++++++++++++++++++++++++++- > >> lib/Kconfig.debug | 2 ++ > >> 3 files changed, 87 insertions(+), 1 deletion(-) > >> create mode 100644 drivers/base/Kconfig.debug > >> > >> diff --git a/drivers/base/Kconfig.debug b/drivers/base/Kconfig.debug > >> new file mode 100644 > >> index 0000000..e21d3cc > >> --- /dev/null > >> +++ b/drivers/base/Kconfig.debug > >> @@ -0,0 +1,14 @@ > >> +menuconfig DRIVER_MATCH_OVERRIDE > >> + bool "Allow manual driver binding to override id match (DANGEROUS)" > >> + default n > >> + help > >> + When binding a driver manually bypass the check of driver id table > >> + against device id in driver core. This can be useful for development > >> + or on buses that don't provide reliable device identification. > > > > Ick, no no no. Why would you ever want to let this happen? If you > > really want to override the check, just write things to the 'bind' file > > in sysfs, that will skip the driver id check entirely, right? > > Well, it does not. Hence this patch which enables skipping the check. > It's the whole point of it.
Then write the id you wish to use for that driver to the new_id file for that driver. Doesn't that work?
thanks,
greg k-h
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