Alexey Dobriyan wrote:
> On Wed, Aug 16, 2006 at 10:09:12AM +0800, liyu wrote:
>
>> --- linux-2.6.17.7/drivers/usb/input.orig/btp2118.c
>> +++ linux-2.6.17.7/drivers/usb/input/btp2118.c
>> +static struct usage_block btp_ff_usage_block[] = {
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF, FF_GAIN, 0),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF, FF_RUMBLE, 0),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF, FF_CONSTANT, 0),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF, FF_SPRING, 0),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF, FF_FRICTION, 0),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF, FF_DAMPER, 0),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF, FF_INERTIA, 0),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF, FF_RAMP, 0),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF_STATUS, 0, FF_STATUS_STOPPED),
>> + USAGE_BLOCK(USAGE_BTP_FF, 0, EV_FF_STATUS, 0, FF_STATUS_PLAYING),
>> + USAGE_BLOCK_NULL
>>
>
> Arrh, now I see why those define.
I am sorry, the documentation for this interface will come soon.
> FYI, they fall into "obfuscation"
> category. Usual and readable style is:
>
> {
> .foo = bar,
> .baz = quux,
> }, {
> .foo1 = bar1,
> .baz = quux1,
> },
> {}
> You don't need 0 and NULL initializations, compiler will do it for you.
>
> Exceptions exist, but just by reading snippet above I can't say wth
> USAGE_BLOCK is.
>
>
:) I think use these macro can make code more clean, however it seem
your viewpoint is opposite with mine.
The reason of I choose this I had an impact on macros USB_DEVICE like,
thus I can not sure if this simulate
is suitable. I would like listen more words about this.
>> +
>> +static struct hidinput_simple_driver btp_driver = {
>> + __SIMPLE_DRIVER_INIT
>>
>
> Impossible to understand without grep. Please, expand in place and nuke
> it altogether.
>
>
My original idea here is information hidden. but it seem have a bit of ugly.
This macro just is
#define __SIMPLE_DRIVER_INIT \
.owner = THIS_MODULE,
I think there must be some better means. I am thinking....
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