Messages in this thread | | | Date | Thu, 8 Sep 2022 21:11:24 +0300 | From | Andy Shevchenko <> | Subject | Re: [PATCH v5 20/21] hwmon: (mr75203) add debugfs to read and write temperature coefficients |
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On Thu, Sep 08, 2022 at 03:24:48PM +0000, Eliav Farber wrote: > This change adds debugfs to read and write temperature sensor coefficients > - g, h, j and cal5. > > The coefficients can vary between product and product, so it can be very > useful to be able to modify them on the fly during the calibration > process. > > e.g.: > > cat /sys/kernel/debug/940f23d0000.pvt/ts_coeff_cal5 > 4096 > > echo 83000 > sys/kernel/debug/940f23d0000.pvt/ts_coeff_g
...
> - Return j coefficient to use debugfs_create_file() instead of > debugfs_create_u32() because j is signed.
You can use
DEFINE_DEBUGFS_ATTRIBUTE(ts_coeff_j, ts_coeff_j_get, ts_coeff_j_set, "%lld\n");
which still makes code compact.
-- With Best Regards, Andy Shevchenko
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