Andrew Morton wrote:
> > On Fri, 23 Feb 2007 17:28:19 -0600 Marc St-Jean
> <firstname.lastname@example.org> wrote:
> > [PATCH] drivers: PMC MSP71xx GPIO char driver
> > Patch to add a GPIO char driver for the PMC-Sierra
> > MSP71xx devices.
> > This patch references some platform support files previously
> > submitted to the email@example.com list.
Thanks for the feedback Andrew. I've implemented all your recommendations
other than the kernel thread handling, which I still have to look into.
> > +/* -- Module functions -- */
> > +
> > +static int msp_gpio_blinkthread( void *none )
> Why is this a "module function"?
The reason is likely because it's only called by msp_gpio_init so it was
considered part of the module code. I'll move the comment to only cover
> > +module_init(msp_gpio_init);
> > +module_exit(msp_gpio_exit);
> > +
> > +EXPORT_SYMBOL(msp_gpio_in);
> > +EXPORT_SYMBOL(msp_gpio_out);
> > +EXPORT_SYMBOL(msp_gpio_mode);
> > +EXPORT_SYMBOL(msp_gpio_blink);
> > +EXPORT_SYMBOL(msp_gpio_noblink);
> What uses these exports?
These exports are needed for other drivers compiled as modules can control
the GPIO pins through this driver.