On Wednesday 18 April 2007 18:35, Dave Jones wrote: > On Wed, Apr 18, 2007 at 04:26:20PM -0400, Len Brown wrote: > > > lenb@nx6325:~> cat /sys/module/acpi/parameters/debug_level > > Description Hex SET > > ACPI_LV_ERROR 0x00000001 [*] > > ACPI_LV_WARN 0x00000002 [*] > > ACPI_LV_INIT 0x00000004 [*] > > ACPI_LV_DEBUG_OBJECT 0x00000008 [*] > > ACPI_LV_INFO 0x00000010 [ ] > > ACPI_LV_INIT_NAMES 0x00000020 [ ] > > ACPI_LV_PARSE 0x00000040 [ ] > > ACPI_LV_LOAD 0x00000080 [ ] > > ACPI_LV_DISPATCH 0x00000100 [ ] > > ACPI_LV_EXEC 0x00000200 [ ] > > ACPI_LV_NAMES 0x00000400 [ ] > > ACPI_LV_OPREGION 0x00000800 [ ] > > ACPI_LV_BFIELD 0x00001000 [ ] > > ACPI_LV_TABLES 0x00002000 [ ] > > ACPI_LV_VALUES 0x00004000 [ ] > > ACPI_LV_OBJECTS 0x00008000 [ ] > > ACPI_LV_RESOURCES 0x00010000 [ ] > > ACPI_LV_USER_REQUESTS 0x00020000 [ ] > > ACPI_LV_PACKAGE 0x00040000 [ ] > > ACPI_LV_ALLOCATIONS 0x00100000 [ ] > > ACPI_LV_FUNCTIONS 0x00200000 [ ] > > ACPI_LV_OPTIMIZATIONS 0x00400000 [ ] > > ACPI_LV_MUTEX 0x01000000 [ ] > > ACPI_LV_THREADS 0x02000000 [ ] > > ACPI_LV_IO 0x04000000 [ ] > > ACPI_LV_INTERRUPTS 0x08000000 [ ] > > ACPI_LV_AML_DISASSEMBLE 0x10000000 [ ] > > ACPI_LV_VERBOSE_INFO 0x20000000 [ ] > > ACPI_LV_FULL_TABLES 0x40000000 [ ] > > ACPI_LV_EVENTS 0x80000000 [ ] > > -- > > debug_level = 0x0000000F (* = enabled) > > Seems to violate the 'one value per file' rule. That isn't a rule, it is a convention, and the convention is violated in other places too -- such as cpufreq stats. basically, sysfs text files are nice for humans but parsing text files is a pain for programs. Indeed, one could argue that the /dev ioctl() programming model is superior to sysfs if you care only about programs. I think the one-value-per-file convention is basically to address the fact that writing programs to parse text files is a PITA. This file will unlikely ever be read by a program, but will be read by a human. > ok, it's one value broken down into its component parts, > but still, it's a bit ott, and we don't do similar > expansion for other bitmasks in sysfs do we? Life on the cutting edge, it is:-) If you have a specific suggestion for improvement, just let me know. -Len - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
