CONFIG_ETRAX_GPIO: GPIO support

General informations

The Linux kernel configuration item CONFIG_ETRAX_GPIO has multiple definitions:

GPIO support found in arch/cris/arch-v10/drivers/Kconfig

The configuration item CONFIG_ETRAX_GPIO:

• prompt: GPIO support
• type: bool
• depends on: CONFIG_ETRAX_ARCH_V10
• defined in arch/cris/arch-v10/drivers/Kconfig
• found in Linux kernels: 2.5.75, 2.6.0–2.6.39, 3.0–3.19, 4.0–4.16

Help text

Enables the ETRAX general port device (major 120, minors 0 and 1). You can use this driver to access the general port bits. It supports these ioctl's: #include <linux/etraxgpio.h> fd = open("/dev/gpioa", O_RDWR); // or /dev/gpiob ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_SETBITS), bits_to_set); ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_CLRBITS), bits_to_clear); val = ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_READBITS), NULL); Remember that you need to setup the port directions appropriately in the General configuration.

GPIO support found in arch/cris/arch-v32/drivers/Kconfig

The configuration item CONFIG_ETRAX_GPIO:

• prompt: GPIO support
• type: bool
• depends on: CONFIG_ETRAX_ARCH_V32
• defined in arch/cris/arch-v32/drivers/Kconfig
• found in Linux kernels: 2.6.13–2.6.39, 3.0–3.19, 4.0–4.3

Help text

Enables the ETRAX general port device (major 120, minors 0-4). You can use this driver to access the general port bits. It supports these ioctl's: #include <linux/etraxgpio.h> fd = open("/dev/gpioa", O_RDWR); // or /dev/gpiob ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_SETBITS), bits_to_set); ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_CLRBITS), bits_to_clear); err = ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_READ_INBITS), &val); Remember that you need to setup the port directions appropriately in the General configuration.

GPIO support found in arch/cris/drivers/Kconfig

The configuration item CONFIG_ETRAX_GPIO:

• prompt: GPIO support
• type: bool
• depends on: (none)
• defined in arch/cris/drivers/Kconfig
• found in Linux kernels: 2.5.45–2.5.74

Help text

Enables the Etrax general port device (major 120, minors 0 and 1). You can use this driver to access the general port bits. It supports these ioctl's: #include <linux/etraxgpio.h> fd = open("/dev/gpioa", O_RDWR); // or /dev/gpiob ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_SETBITS), bits_to_set); ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_CLRBITS), bits_to_clear); val = ioctl(fd, _IO(ETRAXGPIO_IOCTYPE, IO_READBITS), NULL); Remember that you need to setup the port directions appropriately in the General configuration.

Hardware

LKDDb

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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