SGD

#include <sgd.h>

typedef struct _SGD {
    ULONG SG_buff_ptr    // address of data buffer; see below
    ULONG SG_buff_size   // number of bytes to transfer
} SGD, *PSGD;
 

Contains physical scatter/gather descriptors (SGDs). The IOP's IOR_SGD_lin_phys field points to a list of these physical SGDs, when the device driver demands physical SGDs (DCB_dmd_phys_sgd) Note that the creation of physical SGDs is performed in ILB_int_io_criteria_rtn.

SG_buff_ptr

Physical 32 bit address of buffer that contains or receives transferred data.

See Also

IOR, VRP