> -----Original Message----- > From: Peter Meerwald [mailto:[email protected]] > Sent: 16 February, 2015 21:14 > To: Tirdea, Irina > Cc: Jonathan Cameron; [email protected]; > [email protected]; Pandruvada, Srinivas; Reus, Adriana > Subject: Re: [PATCH 0/2] kxcjk-1013 driver optimizations > > > > Adds optimization of i2c transactions in trigger handler and > > usage of available_scan_masks for kxcjk-1013. > > the 'optimization' changes the capabilities of the driver, reading > individual channel is not possible anymore > We can still read individual channels, just that the driver does not see that anymore and the demux is handled by the iio core. available_scan_masks contains the bitmap superset for all channels we can enable (I will remove the 0 available_scan_mask as it does not makes sense). When a new channel is enabled, the iio core checks if the new mask is a subset of any entry in available_scan_masks. When the buffer is pushed from the driver, the iio core will select only the enabled channel values.
> > Adriana Reus (2): > > iio: accel: kxcjk-1013: use available_scan_masks > > iio: accel: kxcjk-1013: optimize i2c transfers in trigger handler > > > > drivers/iio/accel/kxcjk-1013.c | 50 > > ++++++++++++++++++++++++++++++++---------- > > 1 file changed, 39 insertions(+), 11 deletions(-) > > > > > > -- > > Peter Meerwald > +43-664-2444418 (mobile) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
