[PATCH v2 0/2] Fix initialization for Generic Clone X-Input Gamepads

[Ishaan Dandekar <ishaan.dandekar@gmail.com>]

This patch series fixes a hardware panic preventing certain generic X-Input
clone controllers (specifically 0283:0001) from functioning correctly
in Linux. 

When the controller is plugged in, the USB core requests its configuration 
using a 9-byte request. The controller's firmware fails, disconnects, and 
shape-shifts into a fallback Android mode, completely losing its X-Input 
capabilities and haptic feedback (rumble).

Patch 1 (by Nikhil Solanke) builds the underlying core logic to allow 
a 255-byte config request (mimicking Windows behavior).
Patch 2 adds this specific controller's hardware ID to the new quirk list, 
preventing the crash and locking it in X-Input mode.

Note: While these USB patches keep the device stable in X-Input mode, a 
companion patch is being submitted separately to the linux-input subsystem 
(drivers/input/joystick/xpad.c) to ensure the device is routed correctly 
and retains full haptic feedback and functionality.

Changes in v2:
- Added missing Signed-off-by from transmitter to Patch 1.
- Wrapped commit message in Patch 2 to 72 columns.
- Removed trailing whitespace in Patch 2.
- Dropped the Input/xpad routing patch (sent separately to linux-input)

Ishaan Dandekar (1):
  usb: quirks: Add ShanWan gamepad to quirk list

Nikhil Solanke (1):
  usbcore: Add quirk for 255-bytes initial config read

 .../admin-guide/kernel-parameters.txt         | 10 +++++
 drivers/usb/core/config.c                     | 39 +++++++++++++++----
 drivers/usb/core/quirks.c                     |  7 ++++
 include/linux/usb/quirks.h                    |  3 ++
 4 files changed, 52 insertions(+), 7 deletions(-)

-- 
2.34.1