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[PATCH] chardev: GPIO for SCx200 & PC-8736x: use dev_dbg in common module

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Use of dev_dbg() and friends is considered good practice.  dev_dbg() needs a
struct device *devp, but nsc_gpio is only a helper module, so it doesnt
have/need its own.  To provide devp to the user-modules (scx200 & pc8736x
_gpio), we add it to the vtable, and set it during init.

Also squeeze nsc_gpio_dump()'s format a little.

[  199.259879]  pc8736x_gpio.0: io09: 0x0044 TS OD PUE  EDGE LO DEBOUNCE

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jim Cromie 2006-06-27 02:54:23 -07:00 • committed by Linus Torvalds
parent 58b087cda1
commit f31000e573
4 changed files with 34 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/linux/nsc_gpio.h
View file

@ -22,13 +22,14 @@
struct nsc_gpio_ops {
struct module* owner;
u32 (*gpio_config) (unsigned iminor, u32 mask, u32 bits);
void (*gpio_dump) (unsigned iminor);
void (*gpio_dump) (struct nsc_gpio_ops *amp, unsigned iminor);
int (*gpio_get) (unsigned iminor);
void (*gpio_set) (unsigned iminor, int state);
void (*gpio_set_high)(unsigned iminor);
void (*gpio_set_low) (unsigned iminor);
void (*gpio_change) (unsigned iminor);
int (*gpio_current) (unsigned iminor);
struct device* dev; /* for dev_dbg() support, set in init */
};
extern ssize_t nsc_gpio_write(struct file *file, const char __user *data,
@ -36,3 +37,6 @@ extern ssize_t nsc_gpio_write(struct file *file, const char __user *data,
extern ssize_t nsc_gpio_read(struct file *file, char __user *buf,
size_t len, loff_t *ppos);
extern void nsc_gpio_dump(struct nsc_gpio_ops *amp, unsigned index);