diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2007-10-12 21:27:47 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2007-10-12 21:27:47 -0400 |
| commit | b981d8b3f5e008ff10d993be633ad00564fc22cd (patch) | |
| tree | e292dc07b22308912cf6a58354a608b9e5e8e1fd /drivers/media/dvb/b2c2/flexcop-i2c.c | |
| parent | b11d2127c4893a7315d1e16273bc8560049fa3ca (diff) | |
| parent | 2b9e0aae1d50e880c58d46788e5e3ebd89d75d62 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/macintosh/adbhid.c
Diffstat (limited to 'drivers/media/dvb/b2c2/flexcop-i2c.c')
| -rw-r--r-- | drivers/media/dvb/b2c2/flexcop-i2c.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/media/dvb/b2c2/flexcop-i2c.c b/drivers/media/dvb/b2c2/flexcop-i2c.c index 02a0ea6e1c1..6bf858a436c 100644 --- a/drivers/media/dvb/b2c2/flexcop-i2c.c +++ b/drivers/media/dvb/b2c2/flexcop-i2c.c @@ -135,6 +135,13 @@ static int flexcop_master_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs struct flexcop_device *fc = i2c_get_adapdata(i2c_adap); int i, ret = 0; + /* Some drivers use 1 byte or 0 byte reads as probes, which this + * driver doesn't support. These probes will always fail, so this + * hack makes them always succeed. If one knew how, it would of + * course be better to actually do the read. */ + if (num == 1 && msgs[0].flags == I2C_M_RD && msgs[0].len <= 1) + return 1; + if (mutex_lock_interruptible(&fc->i2c_mutex)) return -ERESTARTSYS; |