Hi Greg, Andrew, Corey, > Andrew, please drop this from your tree. Jean is working on a better > version of this patch, and I'll just wait for him. Here it is, sorry for the delay (I took a few days off AFK, made be some good). "Better" here means that I made some coding style cleanups, which were missing from Corey's original patch, nothing more. Thanks. --- Call i2c_transfer() from i2c_master_send() and i2c_master_recv() to avoid the redundant code that was in all three functions. It also removes unnecessary debug statements as suggested by Jean Delvare. This is important for the non-blocking interfaces because they will have to handle a non-blocking interface in this area. Having it in one place greatly simplifies the changes. Signed-off-by: Corey Minyard <minyard at acm.org> Signed-off-by: Jean Delvare <khali at linux-fr.org> drivers/i2c/i2c-core.c | 64 +++++++++++++++---------------------------------- 1 files changed, 20 insertions(+), 44 deletions(-) --- linux-2.6.12-rc4.orig/drivers/i2c/i2c-core.c 2005-05-07 18:57:00.000000000 +0200 +++ linux-2.6.12-rc4/drivers/i2c/i2c-core.c 2005-05-07 18:59:10.000000000 +0200 @@ -611,27 +611,16 @@ struct i2c_adapter *adap=client->adapter; struct i2c_msg msg; - if (client->adapter->algo->master_xfer) { - msg.addr = client->addr; - msg.flags = client->flags & I2C_M_TEN; - msg.len = count; - msg.buf = (char *)buf; + msg.addr = client->addr; + msg.flags = client->flags & I2C_M_TEN; + msg.len = count; + msg.buf = (char *)buf; - dev_dbg(&client->adapter->dev, "master_send: writing %d bytes.\n", - count); - - down(&adap->bus_lock); - ret = adap->algo->master_xfer(adap,&msg,1); - up(&adap->bus_lock); - - /* if everything went ok (i.e. 1 msg transmitted), return #bytes - * transmitted, else error code. - */ - return (ret == 1 )? count : ret; - } else { - dev_err(&client->adapter->dev, "I2C level transfers not supported\n"); - return -ENOSYS; - } + ret = i2c_transfer(adap, &msg, 1); + + /* If everything went ok (i.e. 1 msg transmitted), return #bytes + transmitted, else error code. */ + return (ret == 1) ? count : ret; } int i2c_master_recv(struct i2c_client *client, char *buf ,int count) @@ -639,31 +628,18 @@ struct i2c_adapter *adap=client->adapter; struct i2c_msg msg; int ret; - if (client->adapter->algo->master_xfer) { - msg.addr = client->addr; - msg.flags = client->flags & I2C_M_TEN; - msg.flags |= I2C_M_RD; - msg.len = count; - msg.buf = buf; - dev_dbg(&client->adapter->dev, "master_recv: reading %d bytes.\n", - count); - - down(&adap->bus_lock); - ret = adap->algo->master_xfer(adap,&msg,1); - up(&adap->bus_lock); - - dev_dbg(&client->adapter->dev, "master_recv: return:%d (count:%d, addr:0x%02x)\n", - ret, count, client->addr); - - /* if everything went ok (i.e. 1 msg transmitted), return #bytes - * transmitted, else error code. - */ - return (ret == 1 )? count : ret; - } else { - dev_err(&client->adapter->dev, "I2C level transfers not supported\n"); - return -ENOSYS; - } + msg.addr = client->addr; + msg.flags = client->flags & I2C_M_TEN; + msg.flags |= I2C_M_RD; + msg.len = count; + msg.buf = buf; + + ret = i2c_transfer(adap, &msg, 1); + + /* If everything went ok (i.e. 1 msg transmitted), return #bytes + transmitted, else error code. */ + return (ret == 1) ? count : ret; } -- Jean Delvare