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author | Patrick Boettcher <pb@linuxtv.org> | 2006-05-14 05:01:31 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-06-25 02:00:42 -0300 |
commit | dea74869f3c62b0b7addd67017b22b394e942aac (patch) | |
tree | d1a597caea6615c76f34896cc832fd1371f2e776 /drivers/media/dvb/frontends/cx24123.c | |
parent | 332bed5fc25ab0eb84215ecd89a4acd48219eee0 (diff) | |
download | linux-stable-dea74869f3c62b0b7addd67017b22b394e942aac.tar.gz linux-stable-dea74869f3c62b0b7addd67017b22b394e942aac.tar.bz2 linux-stable-dea74869f3c62b0b7addd67017b22b394e942aac.zip |
V4L/DVB (4028): Change dvb_frontend_ops to be a real field instead of a pointer field inside dvb_frontend
The dvb_frontend_ops is a pointer inside dvb_frontend. That's why every demod-driver
is having a field of dvb_frontend_ops in its private-state-struct and
using the reference for filling the pointer-field in dvb_frontend.
- It saves at least two lines of code per demod-driver,
- reduces object size (one less dereference per frontend_ops-access),
- be coherent with dvb_tuner_ops,
- makes it a little bit easier for newbies to understand how it works and
- avoids stupid mistakes because you would have to copy the dvb_frontend_ops
always, before you could assign the static pointer directly, which was
dangerous.
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/frontends/cx24123.c')
-rw-r--r-- | drivers/media/dvb/frontends/cx24123.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/media/dvb/frontends/cx24123.c b/drivers/media/dvb/frontends/cx24123.c index c71422964064..f2f795cba56a 100644 --- a/drivers/media/dvb/frontends/cx24123.c +++ b/drivers/media/dvb/frontends/cx24123.c @@ -41,7 +41,6 @@ static int debug; struct cx24123_state { struct i2c_adapter* i2c; - struct dvb_frontend_ops ops; const struct cx24123_config* config; struct dvb_frontend frontend; @@ -429,8 +428,8 @@ static int cx24123_set_symbolrate(struct cx24123_state* state, u32 srate) u8 pll_mult; /* check if symbol rate is within limits */ - if ((srate > state->ops.info.symbol_rate_max) || - (srate < state->ops.info.symbol_rate_min)) + if ((srate > state->frontend.ops.info.symbol_rate_max) || + (srate < state->frontend.ops.info.symbol_rate_min)) return -EOPNOTSUPP;; /* choose the sampling rate high enough for the required operation, @@ -950,7 +949,6 @@ struct dvb_frontend* cx24123_attach(const struct cx24123_config* config, /* setup the state */ state->config = config; state->i2c = i2c; - memcpy(&state->ops, &cx24123_ops, sizeof(struct dvb_frontend_ops)); state->lastber = 0; state->snr = 0; state->VCAarg = 0; @@ -968,7 +966,7 @@ struct dvb_frontend* cx24123_attach(const struct cx24123_config* config, } /* create dvb_frontend */ - state->frontend.ops = &state->ops; + memcpy(&state->frontend.ops, &cx24123_ops, sizeof(struct dvb_frontend_ops)); state->frontend.demodulator_priv = state; return &state->frontend; |