On Wed, 14 Oct 2020 07:54:15 +0200, Randy Dunlap wrote:
On 10/13/20 10:16 PM, Udo van den Heuvel wrote:
On 14-10-2020 07:07, Randy Dunlap wrote:
On 10/13/20 9:56 PM, Udo van den Heuvel wrote:
I.e.: it looks like I will lose some funcionality when I disable SND_HDA_CODEC_REALTEK.
OK. At present you can't have it both ways, i.e., SND_HDA_CODEC_REALTEK with no LEDS. That driver apparently wants LEDS.
Thanks but why have I gone for years without LEDS? I do not need LEDS, I do not want LEDS, I do not have LEDS (that are visible, usable, etc).
Please make this selectable instead of forcing more bulk into my kernel.
Kind regards, Udo
Hi Takashi,
Regarding commit 7cdf8c49b1df0a385db06c4f9a5ba1b16510fdcc Author: Takashi Iwai tiwai@suse.de Date: Thu Jun 18 13:08:31 2020 +0200 ALSA: hda: generic: Add a helper for mic-mute LED with LED classdev
and this Kconfig entry:
config SND_HDA_CODEC_REALTEK tristate "Build Realtek HD-audio codec support" select SND_HDA_GENERIC select SND_HDA_GENERIC_LEDS
it seems that LED support is not always wanted (please see above). I.e., user(s) would like to build a kernel without LED support at all.
Can you make it a build option?
Something like this?
Takashi
--- --- a/init/Kconfig +++ b/init/Kconfig @@ -1390,6 +1390,11 @@ menuconfig EXPERT environments which can tolerate a "non-standard" kernel. Only use this if you really know what you are doing.
+config SUPERHACKER + bool "Rule the world" if EXPERT + help + You are allowed to break things at your own risk. + config UID16 bool "Enable 16-bit UID system calls" if EXPERT depends on HAVE_UID16 && MULTIUSER --- a/sound/pci/hda/Kconfig +++ b/sound/pci/hda/Kconfig @@ -94,7 +94,7 @@ config SND_HDA_PATCH_LOADER config SND_HDA_CODEC_REALTEK tristate "Build Realtek HD-audio codec support" select SND_HDA_GENERIC - select SND_HDA_GENERIC_LEDS + select SND_HDA_GENERIC_LEDS if !SUPERHACKER help Say Y or M here to include Realtek HD-audio codec support in snd-hda-intel driver, such as ALC880. @@ -115,7 +115,7 @@ comment "Set to Y if you want auto-loading the codec driver" config SND_HDA_CODEC_SIGMATEL tristate "Build IDT/Sigmatel HD-audio codec support" select SND_HDA_GENERIC - select SND_HDA_GENERIC_LEDS + select SND_HDA_GENERIC_LEDS if !SUPERHACKER help Say Y or M here to include IDT (Sigmatel) HD-audio codec support in snd-hda-intel driver, such as STAC9200. @@ -160,7 +160,7 @@ comment "Set to Y if you want auto-loading the codec driver" config SND_HDA_CODEC_CONEXANT tristate "Build Conexant HD-audio codec support" select SND_HDA_GENERIC - select SND_HDA_GENERIC_LEDS + select SND_HDA_GENERIC_LEDS if !SUPERHACKER help Say Y or M here to include Conexant HD-audio codec support in snd-hda-intel driver, such as CX20549. --- a/sound/pci/hda/hda_generic.h +++ b/sound/pci/hda/hda_generic.h @@ -354,11 +354,29 @@ unsigned int snd_hda_gen_path_power_filter(struct hda_codec *codec, void snd_hda_gen_stream_pm(struct hda_codec *codec, hda_nid_t nid, bool on); int snd_hda_gen_fix_pin_power(struct hda_codec *codec, hda_nid_t pin);
+#ifdef CONFIG_SND_HDA_GENERIC_LEDS int snd_hda_gen_add_mute_led_cdev(struct hda_codec *codec, int (*callback)(struct led_classdev *, enum led_brightness)); int snd_hda_gen_add_micmute_led_cdev(struct hda_codec *codec, int (*callback)(struct led_classdev *, enum led_brightness)); +#else /* CONFIG_SND_HDA_GENERIC_LEDS */ +static inline int +snd_hda_gen_add_mute_led_cdev(struct hda_codec *codec, + int (*callback)(struct led_classdev *, + enum led_brightness)) +{ + return -ENODEV; +} + +static inline int +snd_hda_gen_add_micmute_led_cdev(struct hda_codec *codec, + int (*callback)(struct led_classdev *, + enum led_brightness)) +{ + return -ENODEV; +} +#endif /* CONFIG_SND_HDA_GENERIC_LEDS */
#endif /* __SOUND_HDA_GENERIC_H */