---
name: "mca_read_pos"
section: "9"
platform: "linux"
package: "linux-manual-3.2"
version: "3.2.78-1"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/mca_read_pos"
---

# mca\_read\_pos(9)

read POS register from card

## NAME

mca\_read\_pos - read POS register from card

## SYNOPSIS

**unsigned char mca\_read\_pos(int** *slot***, int** *reg***);**

## ARGUMENTS

*slot*

slot number to read from

*reg*

register to read from

## DESCRIPTION

Fetch a POS value directly from the hardware to obtain the current value. This is much slower than mca\_read\_stored\_pos and may not be invoked from interrupt context. It handles the deep magic required for onboard devices transparently.

## AUTHORS

**Alan Cox** \<alan@lxorguk.ukuu.org.uk\>

Author.

**David Weinehall**

Author.

**Chris Beauregard**

Author.

## COPYRIGHT