ssize_t parport_read (struct parport * port, void * buffer, size_t len);
This will read up to len bytes of buffer to the port specified, using the IEEE 1284 transfer mode most recently negotiated to (using parport_negotiate), as long as that mode supports reverse transfers (peripheral to host).
It is the caller's responsibility to ensure that the first len bytes of buffer are available to write to.
This function returns the number of bytes transferred (if zero or positive), or else an error code.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".
If you have comments on the formatting of this manpage, then please contact Michael Still (mikal@stillhq.com).
This documentation was generated with kernel version 2.5.72.