On Wed, Jun 04, 2014 at 11:25:38AM +0200, Thibaut Dambry wrote: > Hello > > I'm sorry if it is a dummy question, but I don't find a answer. > I would like do that in a barebox hush shell: > > value=`i2c_read -a 0x52 -b 0 -r 0x01 -c 1` > > But the shell don't interpret the ``. > > Is there a method to do that ? There is no redirection of any kind in barebox and this is not trivial to implement. You are trying to read a i2c register into a variable. This is not possible with the current implementation of the i2c command. Some commands work around this by adding a commandline parameter which lets you specify a variable in which the result is written, see for example the readline command. The i2c_read command could be extended similarly. OTOH most of the time this comes up it is better to implement a proper driver for the device. In case it's an EEPROM you're trying to access here you also better write C Code to interpret its content. This kind of shell parsing is often very fragile. > > Thank you for this exciting software, I would contribute but I'm a > little intimidate by the great quality of hackers in this list. C'mon, we do not bite ;) Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
