Hi all, On asm-mips/ioctl.h , there is a mask on the size transfered to the ioctl , e.g. : when implementing an ioctl that handles IO , the max size the supported in mips is 0xff as defined in the code below: #define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) and _IOC uses size in this way: (((size) & _IOC_SLMASK) << _IOC_SIZESHIFT)) // (_IOC_SLMMASK = 0xff) The limited size causes problems on drivers that use size mask to their needs, while officialy the allowed limit is 2^13 ( 8kB) by definition . Does anyone know the reason for this masking and limit ? Thanks, Shay Deloya ______________________________________ Software Developer Jungo - R&D email: shayd@jungo.com web: http://www.jungo.com Phone: 1-877-514-0537(USA) +972-9-8859365(Worldwide) ext. 221 Fax: 1-877-514-0538(USA) +972-9-8859366(Worldwide)
