Messages in this thread | | | Date | Fri, 12 Oct 2007 13:29:31 -0400 | From | "Dmitry Torokhov" <> | Subject | Re: [PATCH try #2] Input/Joystick Driver: add support AD7142 joystick driver |
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Hi Ahmed,
On 10/12/07, Ahmed S. Darwish <darwish.07@gmail.com> wrote: > On Fri, Oct 12, 2007 at 03:38:47PM +0800, Bryan Wu wrote: > > > > Signed-off-by: Bryan Wu <bryan.wu@analog.com> > > --- > > Hi Bryan, > > Why creating module's own kthread to call ad7142_decode and process keycodes > instead of using a tasklet ? >
Yo can't access i2c from a tasklet context.
> Isn't disabling device interrupts from the begining of the ISR "ad7142_interrupt" > till the kthread "ad7142_thread" got waked-up and scheduled a long time, > espicially if there's a high load on the userspace side ? >
It is OK - you disable a specific interrupt line preventing it from raising any more IRQs until current one is serviced. This is different from disabling interrupts on CPU.
> Minor issues below. > > > + > > +/* R ADC stage 0 - 11 result (uncompensated) actually located in SRAM */ > > +#define ADCRESULT_S0 0x0B > > +#define ADCRESULT_S1 0x0C > > +#define ADCRESULT_S2 0x0D > > +#define ADCRESULT_S3 0x0E > > +#define ADCRESULT_S4 0x0F > > +#define ADCRESULT_S5 0x10 > > +#define ADCRESULT_S6 0x11 > > +#define ADCRESULT_S7 0x12 > > +#define ADCRESULT_S8 0x13 > > +#define ADCRESULT_S9 0x14 > > +#define ADCRESULT_S10 0x15 > > +#define ADCRESULT_S11 0x16 > > + > > Keeping last two lines aligned with their above counterparts ?
I believe they are aligned if you aplly the patch.
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