'\" t
.\"     Title: decode_rs8
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Public Functions Provided
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "DECODE_RS8" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Public Functions Provided"
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.SH "NAME"
decode_rs8 \- Decode codeword (8bit data width)
.SH "SYNOPSIS"
.HP \w'int\ decode_rs8('u
.BI "int decode_rs8(struct\ rs_control\ *\ " "rs" ", uint8_t\ *\ " "data" ", uint16_t\ *\ " "par" ", int\ " "len" ", uint16_t\ *\ " "s" ", int\ " "no_eras" ", int\ *\ " "eras_pos" ", uint16_t\ " "invmsk" ", uint16_t\ *\ " "corr" ");"
.SH "ARGUMENTS"
.PP
\fIrs\fR
.RS 4
the rs control structure
.RE
.PP
\fIdata\fR
.RS 4
data field of a given type
.RE
.PP
\fIpar\fR
.RS 4
received parity data field
.RE
.PP
\fIlen\fR
.RS 4
data length
.RE
.PP
\fIs\fR
.RS 4
syndrome data field (if NULL, syndrome is calculated)
.RE
.PP
\fIno_eras\fR
.RS 4
number of erasures
.RE
.PP
\fIeras_pos\fR
.RS 4
position of erasures, can be NULL
.RE
.PP
\fIinvmsk\fR
.RS 4
invert data mask (will be xored on data, not on parity!)
.RE
.PP
\fIcorr\fR
.RS 4
buffer to store correction bitmask on eras_pos
.RE
.SH "DESCRIPTION"
.PP
The syndrome and parity uses a uint16_t data type to enable symbol size > 8\&. The calling code must take care of decoding of the syndrome result and the received parity before calling this code\&. Returns the number of corrected bits or \-EBADMSG for uncorrectable errors\&.
.SH "AUTHOR"
.PP
\fBThomas Gleixner\fR <\&tglx@linutronix.de\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br