docs: cgroup-v2: fix misc.events key format descriptiongrafted

In misc cgroup, misc.events does not output a simple "max" key. Instead,
each registered misc resource outputs a separate key suffixed with ".max"
(i.e., "<res>.max").
Update the documentation to clarify that the entry key is "<res>.max".

Suggested-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Cheng Lingfei <chenglingfei@foxmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/include/sound/sdca_jack.h b/include/sound/sdca_jack.h
new file mode 100644
index 000000000..181541f0f
--- /dev/null
+++ b/include/sound/sdca_jack.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * The MIPI SDCA specification is available for public downloads at
+ * https://www.mipi.org/mipi-sdca-v1-0-download
+ *
+ * Copyright (C) 2025 Cirrus Logic, Inc. and
+ *                    Cirrus Logic International Semiconductor Ltd.
+ */
+
+#ifndef __SDCA_JACK_H__
+#define __SDCA_JACK_H__
+
+struct sdca_interrupt;
+struct snd_kcontrol;
+struct snd_soc_jack;
+
+/**
+ * struct jack_state - Jack state structure to keep data between interrupts
+ * @kctl: Pointer to the ALSA control attached to this jack
+ * @jack: Pointer to the ASoC jack struct for this jack
+ * @mask: Possible reported jack status bits for this jack
+ */
+struct jack_state {
+	struct snd_kcontrol *kctl;
+	struct snd_soc_jack *jack;
+
+	unsigned int mask;
+};
+
+int sdca_jack_alloc_state(struct sdca_interrupt *interrupt);
+int sdca_jack_process(struct sdca_interrupt *interrupt);
+int sdca_jack_set_jack(struct sdca_interrupt_info *info, struct snd_soc_jack *jack);
+int sdca_jack_report(struct sdca_interrupt *interrupt);
+
+#endif // __SDCA_JACK_H__