68b2efbd3b
Use make_dev_s(9) to create device, since the device ioctl interface needs to access si_drv1 to get softc pointer. Remove the common but not functional attempt to prevent parallel accesses by file descriptors by blocking more than one open. Either threads in one process, or forked siblings, or file descriptors passed over unix domain sockets all allow to execute parallel requests once one fd is opened. Since ioctl handler uses smbus_request_bus() to take the bus ownership, the correct mechanism establishes exclusive access already. Sponsored by: The FreeBSD Foundation MFC after: 2 weeks |
||
|---|---|---|
| .. | ||
| smb.c | ||
| smb.h | ||
| smbconf.c | ||
| smbconf.h | ||
| smbus_if.m | ||
| smbus.c | ||
| smbus.h | ||