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A better way to automatically load n5550 leds modules #10

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A better way to automatically load n5550 leds modules
manover Dec 18, 2016
768ead5
* Changed GPIO default base back to 195 to support older RH 7 kernels;
manover Dec 20, 2016
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1 change: 0 additions & 1 deletion conf/99-n5550.rules
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20 changes: 16 additions & 4 deletions conf/modprobe_n5550.conf
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Original file line number Diff line number Diff line change
@@ -1,4 +1,16 @@
install n5550_board /sbin/modprobe i2c_i801; /sbin/modprobe --ignore-install n5550_board
install libahci /sbin/modprobe --ignore-install libahci; /sbin/modprobe n5550_ahci_leds
install it87 /sbin/modprobe --ignore-install it87 fix_pwm_polarity=1; echo 1 > /sys/devices/platform/it87.656/pwm3_enable; echo 255 > /sys/devices/platform/it87.656/pwm3
remove it87 echo 0 > /sys/devices/platform/it87.656/pwm3_enable; /sbin/modprobe -r --ignore-remove it87
softdep libahci post: n5550_ahci_leds
# without the second dependency, it is a race condition
# where n5550_ahci_leds sometimes loses out
softdep ahci pre: n5550_ahci_leds
#
options n5550_board ich_gpio_base=195
# For the newer kernels ^^^^^^^^^^^^^^---- this parameter
# should be changed to 451;
# to find out:
# # dmesg | grep gpio_ich
# [ 17.017262] gpio_ich: GPIO from 451 to 511 on gpio_ich
# first integer is the GPIO base ---^^^^^ you are looking for

install it87 /sbin/modprobe --ignore-install it87 fix_pwm_polarity=1; echo 1 > \
/sys/devices/platform/it87.656/pwm3_enable; echo 255 > /sys/devices/platform/it87.656/pwm3
remove it87 echo 0 > /sys/devices/platform/it87.656/pwm3_enable; /sbin/modprobe -r --ignore-remove it87
1 change: 0 additions & 1 deletion conf/n5550.modules
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Expand Up @@ -2,7 +2,6 @@

modprobe -b coretemp >/dev/null 2>&1
modprobe -b it87 >/dev/null 2>&1
modprobe -b n5550_board >/dev/null 2>&1
#modprobe -b ledtrig_timer >/dev/null 2>&1

exit 0
3 changes: 0 additions & 3 deletions dracut/install
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1 change: 1 addition & 0 deletions modules/n5550_ahci_leds.c
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Expand Up @@ -271,6 +271,7 @@ static int __init n5550_ahci_leds_init(void)
for (i = 0; i < 5; ++i) {
led_trigger_register(&n5550_ahci_led_triggers[i]);
}
pr_info("leds_n5550_ahci: Successfully installed LED hook\n");

done:
mutex_unlock(&module_mutex);
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3 changes: 3 additions & 0 deletions modules/n5550_board.c
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Expand Up @@ -449,6 +449,9 @@ static void __exit n5550_board_exit(void)
module_init(n5550_board_init);
module_exit(n5550_board_exit);

MODULE_SOFTDEP("pre: i2c_i801");
MODULE_ALIAS("dmi:bvnPhoenixTechnologiesLtd*:bvrCDV_T??X64:*:pnMilsteadPlatform:*:rnGraniteWell:rvrFABA:*:ct9:*");

MODULE_AUTHOR("Ian Pilcher <arequipeno@gmail.com>");
MODULE_DESCRIPTION("Thecus N5550 GPIO and LED support");
MODULE_LICENSE("GPL v2");