Hi Ralph, in message <3A76F163.406CBFDB at raleigh.ibm.com> you wrote: > > I am writing a character device driver. I want this device driver to > return an error if the user request less than say 1024 byte of data. > What errno should I use? Is it legal to return an error if not enouth
EINVAL (Invalid argument) is often used in this situation. > bytes are requested? Sure. Many character devices have certain restrictions on the I/O size. Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de Visit us at Embedded Systems: Feb 14-16 2001, Nuremberg, Halle 12/K01 (with TQ Components); our presentation "Starke Zwerge: Embedded Linux auf PowerPC-Systemen" on Thursday, Feb 15 2001, 13:30 Forum Halle 11. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
