On Tuesday, August 24, 2010 07:28:00 Frans Meulenbroeks wrote: > commit c00e9e68d7f77cc3cf3475203860a66cafeba449: > Use already cached fp rather than constantly re-opening things on the fly. > breaks gpio operation. > It is possible to reuse the cached fp, but then we need to seek to the > beginning each time. > /sys/class/gpio/gpio*/value contains only one byte so without seek > we will get only one byte.
ive changed it to rewind(). however, this sounds like useless overhead at the kernel level. i'll start a thread on lkml complaining about being forced to make two system calls when one should be sufficient. i'd point out that my simple gpio driver design didnt have this limitation :P. -mike
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