diff options
| author | Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> | 2016-10-14 04:48:25 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-10-24 16:33:11 +0200 |
| commit | e1acec0e750012edb2a2122b397a40f783c2aa1e (patch) | |
| tree | 5711139a2c8ac806edac04863d7f3e20df9facc3 /tools/gpio/gpio-utils.h | |
| parent | gpio: altera-a10sr: Add A10 System Resource Chip GPIO support. (diff) | |
| download | linux-e1acec0e750012edb2a2122b397a40f783c2aa1e.tar.xz linux-e1acec0e750012edb2a2122b397a40f783c2aa1e.zip | |
tools/gpio: add gpio basic opereations
Add basic gpio operations. User could get/set gpio value for specific
line of gpiochip.
Reference "tools/gpio/gpio-hammer.c" or
"tools/testing/selftest/gpio/gpio-mockup-chardev.c" for how to use it.
Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
Reviewed-by: Michael Welling <mwelling@ieee.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'tools/gpio/gpio-utils.h')
| -rw-r--r-- | tools/gpio/gpio-utils.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/gpio/gpio-utils.h b/tools/gpio/gpio-utils.h index 5f57133b8c04..344ea041f8d4 100644 --- a/tools/gpio/gpio-utils.h +++ b/tools/gpio/gpio-utils.h @@ -24,4 +24,20 @@ static inline int check_prefix(const char *str, const char *prefix) strncmp(str, prefix, strlen(prefix)) == 0; } +int gpiotools_request_linehandle(const char *device_name, unsigned int *lines, + unsigned int nlines, unsigned int flag, + struct gpiohandle_data *data, + const char *consumer_label); +int gpiotools_set_values(const int fd, struct gpiohandle_data *data); +int gpiotools_get_values(const int fd, struct gpiohandle_data *data); +int gpiotools_release_linehandle(const int fd); + +int gpiotools_get(const char *device_name, unsigned int line); +int gpiotools_gets(const char *device_name, unsigned int *lines, + unsigned int nlines, struct gpiohandle_data *data); +int gpiotools_set(const char *device_name, unsigned int line, + unsigned int value); +int gpiotools_sets(const char *device_name, unsigned int *lines, + unsigned int nlines, struct gpiohandle_data *data); + #endif /* _GPIO_UTILS_H_ */ |