In the OSI layered architecture, a service primitive is a message that is exchanged between two adjacent layers in order to request or provide a service. A layer provides services to the layer above it and requests services from the layer below it.
A service primitive consists of an operation code (opcode) and zero or more parameters. The opcode indicates the type of operation requested or performed by the service primitive, while the parameters contain any necessary data for that operation.
For example, in Layer 7 (Application Layer), a service primitive may be used to request data from Layer 6 (Presentation Layer). The Application Layer would send a message containing the appropriate opcode and any required parameters to the Presentation Layer. The Presentation Layer would then perform the requested operation and return any resulting data back up to the Application Layer using another service primitive.
The use of service primitives helps ensure modularity and interoperability between different layers in the OSI model, as well as facilitating communication between different systems that implement these layers.
![/data # iw --debug dev wlan0 connect -w "lucky-5g" auth open key 0:1234567890
Usage: iw [options] dev connect [-w] [] [] [auth open|shared] [key 0:abcde d:1:6162636465] [mfp:req/opt/no]
Join the network with ...](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162239148267954.png)
![驱动代码
void kalRxTaskletSchedule(struct GLUE_INFO *pr)
{
static unsigned int num = 0;
tasklet_hi_schedule(&pr->rRxTask[(num++)%NR_CPUS]);
// tasklet_hi_schedule(&pr->rRxTask);
DBGLOG(HAL, ERROR,](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162226144313964.png)
