Hi Pavan, please don't do top-posting on this mailing list. We want proper inline quoting. > sure. > the bcm4325 has uart transport for BT [so I can make use of hci_h4, say by hciattach - like bcm2035]. > The FM core understands hci-vendor specific command. > > for example, I send HCI_VS opcode=0x20 to set the power of Rx to On.[The power on sequence also involves download of a firmware which is nothing but a file with ~10/20 hci-vendor specific commands with different opcodes]. > opcode 0x0a (say) to set the frequency and similarly in opcode 0x1d [audio enable] I give an data arguement 0x01 or 0x02 to say to FM Rx to put out audio on either it's analog lines or digital [i2s] lines.. > > Currently my fm stack, application is making use of hci_open_dev, send_cmd kind of hci lib calls to send commands. > > Now what should be my approach to send in same sort of commands from the kernel space ? For the firmware loading part, we have to change this whole driver model and add an init stage that allows configuration etc. I am not sold on the whole in-kernel approach for FM yet. We need to talk more about it. Especially since vendor commands and messing with the flow control is tricky. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html