On 2/20/12 6:11 PM, Theodore Ts'o wrote: > ...since the old way is deprecated. > > Addresses-SourceForge-Bug: #3439277 Red Hat bug #644629 too But https://bugzilla.redhat.com/show_bug.cgi?id=644629#c5 made it sound harder than this, so I was ... keeping that bug on the back burner ... > You need to enumerate through all power supply devices with the "type" = > "Mains" attribute, and check if any of them have the "online" attribute as "1". > If so you have AC power. If don't find any power supply of "type" = "Mains" > then you are on AC power too. Only if you have one or more power supplies of > "type" = "Mains" and all of them have "online" = "0" then you are on battery. If your patch fixes the general case, I say go for it! :) -Eric > > Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx> > --- > e2fsck/unix.c | 8 ++++++++ > 1 files changed, 8 insertions(+), 0 deletions(-) > > diff --git a/e2fsck/unix.c b/e2fsck/unix.c > index c38b67a..6f97b0f 100644 > --- a/e2fsck/unix.c > +++ b/e2fsck/unix.c > @@ -252,6 +252,14 @@ static int is_on_batt(void) > unsigned int acflag; > struct dirent* de; > > + f = fopen("/sys/class/power_supply/AC/online", "r"); > + if (f) { > + if (fscanf(f, "%d\n", &acflag) == 1) { > + fclose(f); > + return (!acflag); > + } > + fclose(f); > + } > f = fopen("/proc/apm", "r"); > if (f) { > if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4) -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
