On 02/17/2011 11:48 AM, jacopo mondi wrote: > GOSH, I've exactly searched through the code for CONFIG_CMD_NET, but I > did not noticed was an undef statment instead of a define! > Everything's fine now. Thank you.
Your're welcome. > > Just another question. I've studied the linux enc28j60 driver and > noticed it features an interrupt driven work flow. > No interrupt are used in u-boot version (for what I've seen). That is correct. As u-boot is a bootloader and no os, everything can be done in a single task and polling is used when it is needed. > Is it > based on some sort of polling instead of interrupt? Isn't > that dangerous? I mean, if there are no data available everything is > going to freeze.. It seems to me that the driver goes out from receive function when no data are available. pkn_cnt is read directly from HW, and if the controller is not broken, it will not return any packets and the loop ends up. Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: off...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
