> 1) if firmware is stored on a Wifi chip or rather loaded during the boot proce... | Hacker News

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dewyatt on July 27, 2017 | parent | context | favorite | on: Remotely Compromising Android and iOS via a bug in...

> 1) if firmware is stored on a Wifi chip or rather loaded during the boot process?

Typically it's loaded during the boot process. On Linux, see the binary blobs in /usr/lib/firmware or: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/lin...

Source: I did some work with some broadcom (wired) firmware years ago and found it to be pretty unpleasant.

http://ipxe.org/gsoc/bnx2 and https://github.com/dewyatt/bnx2-fw-utils

azernik on July 27, 2017 [–]

I worked with both QCA and Broadcom wireless, and can confirm. Generally a version of the driver is compatible with only a specific version of the firmware; the system manufacturer gets the driver source and a firmware binary as a package.

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