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* [PATCH] Add symlink for Dell XPS 15 9550 Broadcom Bluetooth patch-ram file
@ 2020-04-17 16:20 Hans de Goede
  2020-04-20 22:31 ` Josh Boyer
  0 siblings, 1 reply; 4+ messages in thread
From: Hans de Goede @ 2020-04-17 16:20 UTC (permalink / raw)
  To: linux-firmware; +Cc: Hans de Goede

The linux-firmware repo does not contain many Broadcom (now Cypress)
Bluetooth patch-ram files, because we have never been able to get
permission to re-distribute those.

We do have one file for the for HTC Vive, which was submitted by HTC
themselves with permission from Cypress.

That file contain a "BCM20703A1 Generic USB 20Mhz fcbga_BU" patch-ram
build. The patch-ram files used by Windows for the Bluetooth module
in the XPS 15 9550, USB-id 0a5c:6410 is also a "BCM20703A1 Generic
USB 20Mhz fcbga_BU" patch-ram build. Since the build-parameters
(crystal MHz, package/module type used) between the 2 builds are an
exact match we can also use the HTC submitted patch-ram for the
XPS 15 9550. So lets add a symlink for this.

This will make the Bluetooth on the XPS 15 9550 work out of the box,
when linux-firmware is installed, without the user needing to go and
find a suitable patch-ram file themselves.

This has been tested on a XPS 15 9550 with both Bluetooth HID and
Bluetooth audio devices.

Signed-off-by: Hans de Goede <>
 WHENCE                 | 1 +
 brcm/BCM-0a5c-6410.hcd | 1 +
 2 files changed, 2 insertions(+)
 create mode 120000 brcm/BCM-0a5c-6410.hcd

diff --git a/WHENCE b/WHENCE
index 893586e..e3bab8b 100644
--- a/WHENCE
+++ b/WHENCE
@@ -10,6 +10,7 @@ kernel.
 Driver: BCM-0bb4-0306 Cypress Bluetooth firmware for HTC Vive
+File: brcm/BCM-0a5c-6410.hcd
 File: brcm/BCM-0bb4-0306.hcd
 Licence: Redistributable. See LICENCE.cypress for details.
diff --git a/brcm/BCM-0a5c-6410.hcd b/brcm/BCM-0a5c-6410.hcd
new file mode 120000
index 0000000..df02293
--- /dev/null
+++ b/brcm/BCM-0a5c-6410.hcd
@@ -0,0 +1 @@
\ No newline at end of file

^ permalink raw reply	[flat|nested] 4+ messages in thread

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Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-04-17 16:20 [PATCH] Add symlink for Dell XPS 15 9550 Broadcom Bluetooth patch-ram file Hans de Goede
2020-04-20 22:31 ` Josh Boyer
2020-04-21  7:46   ` Hans de Goede
2020-04-21 11:47     ` Josh Boyer

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