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author | raj <raj@FreeBSD.org> | 2008-09-08 10:40:48 +0000 |
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committer | raj <raj@FreeBSD.org> | 2008-09-08 10:40:48 +0000 |
commit | ea53a51d65022e830919bd98b42fc1d91fdfd639 (patch) | |
tree | 13ed177c265282936cdef832a5684f9b38e748f4 /sys/dev/iicbus | |
parent | 169da45541ef18ce2faefe7b596d769300fe22b1 (diff) | |
download | FreeBSD-src-ea53a51d65022e830919bd98b42fc1d91fdfd639.zip FreeBSD-src-ea53a51d65022e830919bd98b42fc1d91fdfd639.tar.gz |
ds133x: Introduce device_identify method; update NOTES.
Obtained from: Semihalf
Diffstat (limited to 'sys/dev/iicbus')
-rw-r--r-- | sys/dev/iicbus/ds133x.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/dev/iicbus/ds133x.c b/sys/dev/iicbus/ds133x.c index 9b54615..eec4187 100644 --- a/sys/dev/iicbus/ds133x.c +++ b/sys/dev/iicbus/ds133x.c @@ -53,6 +53,8 @@ __FBSDID("$FreeBSD$"); #include "iicbus_if.h" #include "clock_if.h" +#define DS133X_DEVNAME "rtc" + #define DS133X_ADDR 0xd0 /* slave address */ #define DS133X_DATE_REG 0x0 #define DS133X_CTRL_REG 0x0e @@ -217,6 +219,15 @@ ds133x_init(device_t dev, uint8_t cs_reg, uint8_t cs_bit, uint8_t osf_reg, return (0); } + +static void +ds133x_identify(driver_t *driver, device_t parent) +{ + + if (device_find_child(parent, DS133X_DEVNAME, -1) == NULL) + BUS_ADD_CHILD(parent, 0, DS133X_DEVNAME, -1); +} + static int ds133x_probe(device_t dev) { @@ -336,6 +347,7 @@ ds133x_settime(device_t dev, struct timespec *ts) } static device_method_t ds133x_methods[] = { + DEVMETHOD(device_identify, ds133x_identify), DEVMETHOD(device_probe, ds133x_probe), DEVMETHOD(device_attach, ds133x_attach), @@ -346,7 +358,7 @@ static device_method_t ds133x_methods[] = { }; static driver_t ds133x_driver = { - "rtc", + DS133X_DEVNAME, ds133x_methods, sizeof(struct ds133x_softc), }; |