Sonny Sasaka
89e65975fe
Many controllers do not allow HCI Create Connection while it is doing
Inquiry. This patch adds Inquiry Cancel before Create Connection in this
case to allow the controller to do Create Connection. User space will be
aware of this Inquiry cancellation and they may issue another discovery
request afterwards.
Sample Command Disallowed response of HCI Create Connection:
< HCI Command: Inquiry (0x01|0x0001) plen 5
Access code: 0x9e8b33 (General Inquiry)
Length: 10.24s (0x08)
Num responses: 0
> HCI Event: Command Status (0x0f) plen 4
Inquiry (0x01|0x0001) ncmd 2
Status: Success (0x00)
< HCI Command: Create Connection (0x01|0x0005) plen 13
Address: XX:XX:XX:XX:XX:XX
Packet type: 0xcc18
Page scan repetition mode: R2 (0x02)
Page scan mode: Mandatory (0x00)
Clock offset: 0x0000
Role switch: Allow slave (0x01)
> HCI Event: Command Status (0x0f) plen 4
Create Connection (0x01|0x0005) ncmd 1
Status: Success (0x00)
> HCI Event: Connect Complete (0x03) plen 11
Status: Command Disallowed (0x0c)
Handle: 65535
Address: XX:XX:XX:XX:XX:XX
Link type: ACL (0x01)
Encryption: Disabled (0x00)
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reviewed-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Sonny Sasaka <sonnysasaka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.