https://bugzilla.kernel.org/show_bug.cgi?id=15204
--- Comment #31 from John <infynidybusine...@yahoo.com> 2010-06-22 20:36:29 --- Dear Zhang, I had recompiled with CONFIG_ACPI_DEBUG and reboot with the boot options specified. I attempted to write to "/sys/kernel/debug/acpi/custom_method", bash returned "No such file or directory". I checked the directory hierarchy and there was nothing under "/sys/kernel/debug/". I had mounted the debugfs via "mount -t debugfs none /sys/kernel/debug" and checked the directory hierarchy, as expected the files have appeared. The only problem is I cannot write to "/sys/kernel/debug/acpi/custom_method". when running "cat IBCM.aml > /sys/kernel/debug/acpi/custom_method", bash returns "cat: write error: Invalid argument". I have attached the output of dmesg, attached as "dmesg_latest". After running "cat IBCM.aml > /sys/kernel/debug/acpi/custom_method", dmesg outputs a warning. Thank you for your time. (In reply to comment #29) > Created an attachment (id=26895) --> (https://bugzilla.kernel.org/attachment.cgi?id=26895) [details] > custom IBCM method > > please > 1. build a kernel later than 2.6.33 with CONFIG_ACPI_DEBUG set. > 2. reboot with boot option "acpi.debug_level=0x2002 > acpi.debug_layer=0xffffffff > log_buf_len=1M" > 3. run "cat IBCM.aml > /sys/kernel/debug/acpi/custom_method" > 4. try to change the backlight > 5 attach the dmesg output. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
