include/linux/mmc/pm.h

Source file repositories/reference/linux-study-clean/include/linux/mmc/pm.h

File Facts

System
Linux kernel
Corpus path
include/linux/mmc/pm.h
Extension
.h
Size
900 bytes
Lines
28
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef LINUX_MMC_PM_H
#define LINUX_MMC_PM_H

/*
 * These flags are used to describe power management features that
 * some cards (typically SDIO cards) might wish to benefit from when
 * the host system is being suspended.  There are several layers of
 * abstractions involved, from the host controller driver, to the MMC core
 * code, to the SDIO core code, to finally get to the actual SDIO function
 * driver.  This file is therefore used for common definitions shared across
 * all those layers.
 */

typedef unsigned int mmc_pm_flag_t;

#define MMC_PM_KEEP_POWER	(1 << 0)	/* preserve card power during suspend */
#define MMC_PM_WAKE_SDIO_IRQ	(1 << 1)	/* wake up host system on SDIO IRQ assertion */

#endif /* LINUX_MMC_PM_H */

Annotation

Implementation Notes