Linux Manuals session 9

devm_iio_trigger_register – Resource-managed iio_trigger_register Synopsis int devm_iio_trigger_register(struct device *dev, struct iio_trigger *trig_info); Arguments dev device this trigger was allocated for trig_info trigger to register Description Managed iio_trigger_register. The IIO trigger registered with this function is automatically unregistered on driver detach. This function calls iio_trigger_register internally. Refer to that function for more information. If an iio_trigger…

devm_iio_trigger_free – Resource-managed iio_trigger_free Synopsis void devm_iio_trigger_free(struct device *dev, struct iio_trigger *iio_trig); Arguments dev Device this iio_dev belongs to iio_trig the iio_trigger associated with the device Description Free iio_trigger allocated with devm_iio_trigger_alloc. Author Daniel Baluta <daniel.baluta [at] intel.com> Author. Copyright

devm_iio_trigger_alloc – Resource-managed iio_trigger_alloc Synopsis struct iio_trigger *devm_iio_trigger_alloc(struct device *dev, const char *fmt, …); Arguments dev Device to allocate iio_trigger for fmt trigger name format. If it includes format specifiers, the additional arguments following format are formatted and inserted in the resulting string replacing their respective specifiers. … variable arguments Description Managed iio_trigger_alloc. iio_trigger allocated…

devm_clk_put – "free" a managed clock source Synopsis void devm_clk_put(struct device *dev, struct clk *clk); Arguments dev device used to acquire the clock clk clock source acquired with devm_clk_get Note drivers must ensure that all clk_enable calls made on this clock source are balanced by clk_disable calls prior to calling this function. clk_put should not…

devm_clk_get – lookup and obtain a managed reference to a clock producer. Synopsis struct clk *devm_clk_get(struct device *dev, const char *id); Arguments dev device for clock “consumer” id clock consumer ID Description Returns a struct clk corresponding to the clock producer, or valid IS_ERR condition containing errno. The implementation uses dev and id to determine…

device_add_disk – add partitioning information to kernel list Synopsis void device_add_disk(struct device *parent, struct gendisk *disk); Arguments parent parent device for the disk disk per-device partitioning information Description This function registers the partitioning information in disk with the kernel. FIXME: error handling Copyright

dev_valid_name – check if name is okay for network device Synopsis bool dev_valid_name(const char * name); Arguments name name string Description Network device names need to be valid file names to to allow sysfs to work. We also disallow any kind of whitespace. Copyright

dev_set_promiscuity – update promiscuity count on a device Synopsis int dev_set_promiscuity(struct net_device *dev, int inc); Arguments dev device inc modifier Description Add or remove promiscuity from a device. While the count in the device remains above zero the interface remains promiscuous. Once it hits zero the device reverts back to normal filtering operation. A negative…

dev_set_mtu – Change maximum transfer unit Synopsis int dev_set_mtu(struct net_device *dev, int new_mtu); Arguments dev device new_mtu new transfer unit Description Change the maximum transfer size of the network device. Copyright

dev_set_mac_address – Change Media Access Control Address Synopsis int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa); Arguments dev device sa new address Description Change the hardware (MAC) address of the device Copyright

dev_set_group – Change group this device belongs to Synopsis void dev_set_group(struct net_device *dev, int new_group); Arguments dev device new_group group this device should belong to Copyright

dev_set_allmulti – update allmulti count on a device Synopsis int dev_set_allmulti(struct net_device *dev, int inc); Arguments dev device inc modifier Description Add or remove reception of all multicast frames to a device. While the count in the device remains above zero the interface remains listening to all interfaces. Once it hits zero the device reverts…

dev_remove_pack – remove packet handler Synopsis void dev_remove_pack(struct packet_type *pt); Arguments pt packet type declaration Description Remove a protocol handler that was previously added to the kernel protocol handlers by dev_add_pack. The passed packet_type is removed from the kernel lists and can be freed or reused once this function returns. This call sleeps to guarantee…

dev_remove_offload – remove packet offload handler Synopsis void dev_remove_offload(struct packet_offload *po); Arguments po packet offload declaration Description Remove a packet offload handler that was previously added to the kernel offload handlers by dev_add_offload. The passed offload_type is removed from the kernel lists and can be freed or reused once this function returns. This call sleeps…

dev_put – release reference to device Synopsis void dev_put(struct net_device *dev); Arguments dev network device Description Release reference to device to allow it to be freed. Copyright

dev_open – prepare an interface for use. Synopsis int dev_open(struct net_device *dev); Arguments dev device to open Description Takes a device from down to up state. The device’s private open function is invoked and then the multicast lists are loaded. Finally the device is moved into the up state and a NETDEV_UP message is sent…

dev_loopback_xmit – loop back skb Synopsis int dev_loopback_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); Arguments net network namespace this loopback is happening in sk sk needed to be a netfilter okfn skb buffer to transmit Copyright

dev_hold – get reference to device Synopsis void dev_hold(struct net_device *dev); Arguments dev network device Description Hold reference to device to keep it from being freed. Copyright

dev_getbyhwaddr_rcu – find a device by its hardware address Synopsis struct net_device *dev_getbyhwaddr_rcu(struct net *net, unsigned short type, const char *ha); Arguments net the applicable net namespace type media type of device ha hardware address Description Search for an interface by MAC address. Returns NULL if the device is not found or a pointer to…

dev_get_stats – get network device statistics Synopsis struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev, struct rtnl_link_stats64 *storage); Arguments dev device to get statistics from storage place to store stats Description Get network statistics from device. Return storage. The device driver may provide its own method by setting dev->netdev_ops->get_stats64 or dev->netdev_ops->get_stats; otherwise the internal statistics structure is used….