Hi Chris, > /sys/devices/.../mmc_host/mmcX/mmcX:XXXX/enhanced_area_size > > > > +Date: January 2011 > > > > +Contact: Chuanxiao Dong <chuanxiao.dong@xxxxxxxxx> > > > > +Description: > > > > + Enhanced area is a new feature defined in eMMC4.4 standard. > eMMC4.4 > > > or > > > > + later card can support such feature. This kind of area can help to > > > > + improve the card performance. If the feature is enabled, this > attribute > > > > + will indicate the size of enhanced data area. If not, this attribute > > > > + will be -EINVAL. Unit KByte. Format decimal. > > > > > > This is still wrapped at > 80 columns. > > Sorry for that. I have set the textwidth=80 for vim, not understand why this is still > wrapped at >80 columns... I know checkpatch.pl can help us to find the style > problem, and is there some other script which can help find the style problem of > Document or how can I avoid such errors? > > checkpatch.pl will warn about >80 chars, so that should be fine on its own. I have used the checkpatch.pl to check this patch, and no error or warning found.... > > > > Oh, and let's mention the units of _offset and _size in the comment in > > > card.h. > > > > Chris, you mean the type of _offset and _size? I think the 64bits number for > _offset is enough, also the 32bits number for _size since the units of _size is Kbytes. > Any suggestions on that? > > Ah, I wasn't clear -- I meant the bytes/kilobytes units, not the data type > sizes. e.g.: > > + size_t enhanced_area_size; /* Units: KB */ I think the units of _offset and _size should be easy for user to understand, so just choose the Byte for _offset and Kbyte for _size... And as spec said, the _size is (ENH_SIZE_MULT_2 << 16 + ENH_SIZE_MULT_1 << 8 + ENH_SIZE_MULT_0) x HC_WP_GRP_SIZE x HC_ERASE_GPR_SIZE x 512kBytes. It must be Kbytes aligned. That is another reason to choose it. What do you think? Thanks Chuanxiao -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
