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elantp: Include 04F3:0400 (bootloader) as a valid i2c-hid touchpad (#5283)

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* elantp: Include 04F3:0400 (bootloader) as a valid i2c-hid touchpad

ELAN Touchpads with product ids between 0x3000 and 0x4000 can sometimes
end up in bootloader mode (due to not having a valid firmware, for
example)

The bootloader has a product id outside of the range checked by
fu_elantp_hid_device_probe, resulting in the device disappearing from
get-devices when it's in that mode, which makes it seem dead.

This expands the range of that check to include 0x400 so that it is
possible to upload a valid firmware to it.
This commit is contained in:
dx 2022-11-28 14:37:42 +01:00 committed by GitHub
parent 85495b5bb2
commit 30a726faee
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 2 deletions
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5
plugins/elantp/fu-elantp-hid-device.c
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@ -53,6 +53,8 @@ fu_elantp_hid_device_to_string(FuDevice *device, guint idt, GString *str)
static gboolean
fu_elantp_hid_device_probe(FuDevice *device, GError **error)
{
guint16 device_id = fu_udev_device_get_model(FU_UDEV_DEVICE(device));
/* check is valid */
if (g_strcmp0(fu_udev_device_get_subsystem(FU_UDEV_DEVICE(device)), "hidraw") != 0) {
g_set_error(error,
@ -64,8 +66,7 @@ fu_elantp_hid_device_probe(FuDevice *device, GError **error)
}
/* i2c-hid */
if (fu_udev_device_get_model(FU_UDEV_DEVICE(device)) < 0x3000 ||
fu_udev_device_get_model(FU_UDEV_DEVICE(device)) >= 0x4000) {
if (device_id != 0x400 && (device_id < 0x3000 || device_id >= 0x4000)) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,