diff options
| author |   Wolfram Sang <wsa+renesas@sang-engineering.com> | 2015-07-27 14:03:38 +0200 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2015-08-24 14:05:15 +0200 |
| commit | cfa0327b0d03091e0c47249c080e50e287be762d (patch) | |
| tree | 623f03aee6dc0bbdaada27b4f2cab5e4a7fd87fd /drivers/i2c | |
| parent | i2c: take address space into account when checking for used addresses (diff) | |
| download | linux-dev-cfa0327b0d03091e0c47249c080e50e287be762d.tar.xz linux-dev-cfa0327b0d03091e0c47249c080e50e287be762d.zip | |
i2c: support 10 bit and slave addresses in sysfs 'new_device'
We now have seperate address spaces for 10 bit and we-are-slave clients.
Update the sysfs device instantiation method to support these types by
accepting the address offsets that are assigned to the extra address
spaces. Update the documentation, too.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/i2c-core.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index fc6d89316144..039817eaecb5 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1158,6 +1158,16 @@ i2c_sysfs_new_device(struct device *dev, struct device_attribute *attr, return -EINVAL; } + if ((info.addr & I2C_ADDR_OFFSET_TEN_BIT) == I2C_ADDR_OFFSET_TEN_BIT) { + info.addr &= ~I2C_ADDR_OFFSET_TEN_BIT; + info.flags |= I2C_CLIENT_TEN; + } + + if (info.addr & I2C_ADDR_OFFSET_SLAVE) { + info.addr &= ~I2C_ADDR_OFFSET_SLAVE; + info.flags |= I2C_CLIENT_SLAVE; + } + client = i2c_new_device(adap, &info); if (!client) return -EINVAL; @@ -1209,7 +1219,7 @@ i2c_sysfs_delete_device(struct device *dev, struct device_attribute *attr, i2c_adapter_depth(adap)); list_for_each_entry_safe(client, next, &adap->userspace_clients, detected) { - if (client->addr == addr) { + if (i2c_encode_flags_to_addr(client) == addr) { dev_info(dev, "%s: Deleting device %s at 0x%02hx\n", "delete_device", client->name, client->addr); |