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Searched refs:dev_fd (Results 1 – 5 of 5) sorted by relevance

/linux/tools/testing/selftests/nci/
H A Dnci_dev.c324 int dev_fd; in virtual_dev_open() local
327 dev_fd = *(int *)data; in virtual_dev_open()
329 len = read(dev_fd, buf, 258); in virtual_dev_open()
336 write(dev_fd, nci_reset_rsp, sizeof(nci_reset_rsp)); in virtual_dev_open()
338 len = read(dev_fd, buf, 258); in virtual_dev_open()
345 write(dev_fd, nci_init_rsp, sizeof(nci_init_rsp)); in virtual_dev_open()
347 len = read(dev_fd, buf, 258); in virtual_dev_open()
354 write(dev_fd, nci_rf_disc_map_rsp, sizeof(nci_rf_disc_map_rsp)); in virtual_dev_open()
364 int dev_fd; in virtual_dev_open_v2() local
367 dev_fd = *(int *)data; in virtual_dev_open_v2()
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/linux/tools/testing/selftests/kvm/include/
H A Dkvm_util.h762 int __kvm_has_device_attr(int dev_fd, uint32_t group, uint64_t attr); in kvm_has_device_attr()
764 static inline void kvm_has_device_attr(int dev_fd, uint32_t group, uint64_t attr)
766 int ret = __kvm_has_device_attr(dev_fd, group, attr);
771 int __kvm_device_attr_get(int dev_fd, uint32_t group, uint64_t attr, void *val); in kvm_device_attr_get()
773 static inline void kvm_device_attr_get(int dev_fd, uint32_t group, in kvm_device_attr_get()
776 int ret = __kvm_device_attr_get(dev_fd, group, attr, val);
781 int __kvm_device_attr_set(int dev_fd, uint32_t group, uint64_t attr, void *val); in kvm_device_attr_set()
783 static inline void kvm_device_attr_set(int dev_fd, uint32_t group, in kvm_device_attr_set()
786 int ret = __kvm_device_attr_set(dev_fd, group, attr, val); in __vcpu_has_device_attr()
758 kvm_has_device_attr(int dev_fd,uint32_t group,uint64_t attr) kvm_has_device_attr() argument
767 kvm_device_attr_get(int dev_fd,uint32_t group,uint64_t attr,void * val) kvm_device_attr_get() argument
777 kvm_device_attr_set(int dev_fd,uint32_t group,uint64_t attr,void * val) kvm_device_attr_set() argument
/linux/Documentation/userspace-api/
H A Dvduse.rst113 static int vduse_message_handler(int dev_fd)
119 len = read(dev_fd, &req, sizeof(req));
131 len = write(dev_fd, &resp, sizeof(resp));
185 static void *iova_to_va(int dev_fd, uint64_t iova, uint64_t *len)
199 fd = ioctl(dev_fd, VDUSE_IOTLB_GET_FD, &entry);
/linux/Documentation/target/
H A Dtcmu-design.rst308 int fd, dev_fd;
331 dev_fd = open("/dev/uio0", O_RDWR);
332 map = mmap(NULL, map_len, PROT_READ|PROT_WRITE, MAP_SHARED, dev_fd, 0);
340 int ret = read(dev_fd, buf, 4); /* will block */
342 handle_device_events(dev_fd, map);
/linux/Documentation/virt/kvm/
H A Dapi.rst194 vm_fd = ioctl(dev_fd, KVM_CREATE_VM, KVM_VM_TYPE_ARM_IPA_SIZE(48));